Use the A-Z list to browse more than 6,000 health-related topics in our library. Clicking on a term opens the definition and, in most cases, links to more information.
"AN" is more commonly referred to as "Acanthosis Nigricans" in the medical community. Acanthosis Nigricans
A disorder in which the skin develops velvety, light-brown-to-black markings usually on the neck, under the arms or in the groin. It is more common in overweight people and in those with higher than normal insulin levels. More Information on Acanthosis Nigricans: Skin Discoloration
Antibodies that attack the body's own tissues, mistaking them for foreign invaders. Blood tests can detect these antibodies, which may indicate diseases such as lupus or rheumatoid arthritis. More Information on ANA: Arthritis
Blood tests to detect these antinuclear antibodies that attack the body's own tissues, mistaking them for foreign invaders. They may be used to diagnose diseases such as lupus or rheumatoid arthritis. More Information on ANA Blood Tests: Pain Lab Tests
Also Known As: "Antinuclear Antibody Tests, ANA Blood Tests"
Blood tests to detect these antinuclear antibodies that attack the body's own tissues, mistaking them for foreign invaders. They may be used to diagnose diseases such as lupus or rheumatoid arthritis. More Information on ANA Tests: Pain Lab Tests
An artificially created hormone used to enhance muscle tissue size and strength by replicating the effects of testosterone. It may be used to help patients with uncontrolled weight loss or abused by athletes to improve performance.
Bacteria that does not require oxygen to survive and multiply. Dental infections are typically caused by these bacteria. More Information on Anaerobic Bacteria: Oral Infections
"Anakinra" is more commonly referred to as "Cyclosporine" in the medical community. Cyclosporine
Also Known As: "Tacrolimus, Efalizumab, Pimecrolimus, Alefacept, Antithymocyte Globulin"
Any one of a type of immunosuppressant, medications that suppress the immune system. They may be used to treat conditions such as rheumatoid arthritis as well as to prevent rejection following organ transplants. More Information on Cyclosporine: Arthritis
Many conditions affect the anus and rectum. Common and minor problems include anal fissures and hemorrhoids. More serious problems include sexually transmitted disease and cancer. More Information on Anal & Rectal Problems: Anal & Rectal Disorders
A rare form of cancer in which malignant cells are found in the anus (the canal below the intestines and rectum through which solid waste exits the body). Cancers of outer anal skin (perianal area) are skin cancers and not anal cancers. More Information on Anal Cancer: Gastrointestinal System Cancer
Discomfort of the anus, such as itching or pain. Common causes of include hemorrhoids, anal fissures, trauma or injury and irritation of the anal skin or lining. More Information on Anal Discomfort: Anal & Rectal Disorders
A diagnostic test in which tiny needle electrodes are inserted into muscles around the anus to detect nerve or muscular problems with the anal sphincter. More Information on Anal Electromyogram: Digestive Lab Tests
A diagnostic test in which tiny needle electrodes are inserted into muscles around the anus to detect nerve or muscular problems with the anal sphincter. More Information on Anal Electromyograph: Digestive Lab Tests
Also Known As: "Anal Electromyogram, Anal Electromyograph"
A diagnostic test in which tiny needle electrodes are inserted into muscles around the anus to detect nerve or muscular problems with the anal sphincter. More Information on Anal Electromyography: Digestive Lab Tests
A duct or passage that develops between the anus or rectum and the skin, often the result of an abscess spreading to the skin. More Information on Anal Fistula: Anal & Rectal Disorders
Also Known As: "Pruritus Ani, Perianal Itching, Anal Pruritis"
Intense itching around the anus, the canal that is the outlet of the rectum. It usually causes a strong urge to scratch and is associated with moisture, abrasion caused by clothing and pressure from sitting. More Information on Anal Itchiness: Skin Signs & Symptoms
Also Known As: "Pruritus Ani, Anal Pruritis, Perianal Itching, Anal Itchiness"
Intense itching around the anus, the canal that is the outlet of the rectum. It usually causes a strong urge to scratch and is associated with moisture, abrasion caused by clothing and pressure from sitting. More Information on Anal Itching: Skin Signs & Symptoms
Also Known As: "Pruritus Ani, Perianal Itching, Anal Itchiness"
Intense itching around the anus, the canal that is the outlet of the rectum. It usually causes a strong urge to scratch and is associated with moisture, abrasion caused by clothing and pressure from sitting. More Information on Anal Pruritis: Skin Signs & Symptoms
A test in which a physician gently touches the anus with a probe to see if it contracts normally. An inability of the anus to pucker may indicate nerve damage. More Information on Anal Wink Test: Anal & Rectal Disorders
The absence of pain. This term may describe the absence of pain when it should be present (e.g., a symptom of paralysis), methods of pain prevention or pain relief. More Information on Analgesia: Pain Basics
A type of headache that results from daily or near daily use of prescription or over-the-counter pain medication. Complete discontinuation of the medication(s) is usually necessary to relieve the pain. More Information on Analgesic Rebound Headaches: Headache & Migraine
Medications that reduce pain. Most also reduce inflammation. There are many types that may be available over-the-counter or by prescription. They do not eliminate pain, but mask it by increasing the body's pain threshold. More Information on Analgesics: Pain Medications
A severe, life-threatening allergic reaction often characterized by swelling of body tissues, drop in blood pressure, difficulty breathing and other symptoms. It requires immediate medical attention. More Information on Anaphylactic Shock: Allergy Basics
An immediate and often severe allergic response that involves two or more body systems. Symptoms can include wheezing, hives and dizziness. Anaphylaxis can progress to anaphylactic shock, a potentially life-threatening condition. More Information on Anaphylaxis: Allergy Basics
Referring to cells that have permanently reversed development (anaplasia), becoming more primitive and, usually cancerous. Such cells multiply rapidly and signify a cancer that is likely to be aggressive. More Information on Anaplasia: Cancer Basics
Referring to cells that have permanently reversed development (anaplasia), becoming more primitive and, usually cancerous. Such cells multiply rapidly and signify a cancer that is likely to be aggressive. More Information on Anaplastic: Cancer Basics
An aggressive form of non Hodgkin's lymphoma that usually involves the T cells. It may appear in the lymph nodes, lungs, liver, skin, bones or soft tissue. More Information on Anaplastic Large Cell Lymphoma: Lymphoma (Hodgkin's & Non)
"Anaplastic Thyroid Cancers" is more commonly referred to as "Thyroid Cancers" in the medical community. Thyroid Cancers
Also Known As: "Medullary Thyroid Carcinoma, Papillary Thyroid Cancers, Papillary Thyroid Carcinoma, Well Differentiated Thyroid Cancers, Follicular Thyroid Cancers"
Cancerous tumor or growth within the thyroid gland. It is the most common type of endocrine cancer. More Information on Thyroid Cancers: Endocrine System Cancer
"Anarthritic Syndrome" is more commonly referred to as "Polymyalgia Rheumatica" in the medical community. Polymyalgia Rheumatica
Also Known As: "Arthritic Rheumatoid Disease, PMR"
A rheumatic disease that involves tendons, muscles, ligaments and tissues around the joints, often in people over 50. Pain, aching and morning stiffness in the neck, shoulders, lower back and hips characterize the disease. More Information on Polymyalgia Rheumatica: Fibromyalgia & Pain Disorders
"Anasarca" is more commonly referred to as "Edema" in the medical community. Edema
Also Known As: "Fluid Retention, Pitting Edema, Cardiac Edema, Dependent Edema, Orbital Edema"
A condition in which the tissues of part(s) of the body (e.g., the legs, ankles and hands) become filled with fluid, often leading to swelling. This can signal a serious underlying cause, such as congestive heart failure. More Information on Edema: Heart Signs & Symptoms
The place where two vessels connect, either naturally or after surgery. For example, the urethra and the bladder neck are surgically joined after prostate removal. Parts of the bowel also may be connected this way after colostomy.
Abnormalities with the structure of the colon (large intestine). These may include failure to rotate fully during development, closed areas (atresia), abnormal connections (fistulae) and twisting. More Information on Anatomic Problems of the Colon: IBS & Bowel Function
The visible portion of the tooth that is covered by enamel. Over time, this area gradually wears down. Certain problems, such as an incorrect bite or grinding the teeth, can speed up this process. More Information on Anatomical Crown: Oral Health Basics
A steroid hormone produced in the adrenal glands and gonads that develops and increases muscle tissue by increasing the testosterone level in the body.
Also Known As: "Sertoli Leydig Cell Tumor, Gonadal Stromal Tumor, Arrhenoblastoma, Sertoli Leydig Ovarian Tumor, Sex Cord Tumor, Sertoli Leydig Cell Tumor of the Ovary, Stromal Tumor"
A rare type of ovarian cancer in which the tumor secretes the male hormone testosterone. This leads to the appearance of male characteristics in females. More Information on Androblastoma: ObGyn Cancer
Any hormone that stimulates the development and maintenance of male sex organs and characteristics. These include testosterone, androstenedione and DHEA. They are also a normal part of women's reproduction and levels vary during the menstrual cycle. More Information on Androgen: Prostate & Testicular
Also Known As: "Antiandrogen Medications, Antiandrogenic"
Medications that block the effects of the hormone androgen and testosterone are used to treat acne, male pattern baldness and hirsutism (excessive hair growth). They may also be used to treat conditions such as cancer and sexual disorders. More Information on Androgen Antagonists: Alopecia (Hair Loss)
Medications that reduce the effects of the male sex hormone androgen and are used to treat acne, male pattern baldness and hirsutism (excessive hair growth). More Information on Androgen Inhibitors: Alopecia (Hair Loss)
A genetic condition that causes women to have a body type within the normal female range but without a uterus and with little body hair. More Information on Androgen Resistance Syndrome: Birth & Genetic Disorders
Common disorder caused by genetic and hormonal factors that results in loss of scalp hair in men. It also affects women, but usually begins later in life and is less severe. More Information on Androgenetic Alopecia: Alopecia (Hair Loss)
The storage of body fat when it takes place in the abdomen. This results in the body shape of an "apple" where the shoulders, face, arms, neck, chest & upper portion of the abdomen appear bloated.
More Information on Android Obesity: Weight & Obesity Basics
A steroid hormone produced in the adrenal glands and gonads that develops and increases muscle tissue by increasing the testosterone level in the body.
A condition in which the blood has too few red blood cells, not enough hemoglobin or an overall blood volume that is too low. More Information on Anemia: Anemia & Blood Disorders
A condition in which the blood has too few red blood cells, not enough hemoglobin or an overall blood volume that is too low. Several cancers have anemia as a symptom, in addition to it being a side effect of some cancer treatments. More Information on Anemia & Cancer: Cancer Signs & Symptoms
A condition in which the blood has too few red blood cells, not enough hemoglobin or an overall blood volume that is too low. In children, anemia may be caused by iron deficiency or other blood conditions. More Information on Anemia & Children: Pediatric Signs & Symptoms
A type of neural tube defect in which the head (cephalic) of the neural tube fails to close resulting in the absence of part of the brain, skull and scalp. It usually leads to the baby being stillborn or dying shortly after birth. More Information on Anencephaly: Pediatric Brain & Nerve
"Aneroid Sphygmomanometer" is more commonly referred to as "Sphygmomanometer" in the medical community. Sphygmomanometer
Also Known As: "Arm Cuff, Blood Pressure Cuff, Mercury Sphygmomanometer"
The arm cuff device used to measure blood pressure. Some types have a mercury display, while others provide electronic readouts. More Information on Sphygmomanometer: Blood Pressure
Also Known As: "Anesthetic, Regional Anesthesia, Local Anesthesia"
A numbing agent used to prevent pain during medical procedures. Local and regional anesthesia eliminate pain from specific regions, such as the mouth during dental procedures. General anesthesia affects the entire body and causes unconsciousness. More Information on Anesthesia: Oral Medications
A potential complication of neurosurgery in which the trigeminal nerve is damaged leading to a decrease in general sensation of the face. However, a sense of pain remains. While no cure has been found, treatments can relieve discomfort. More Information on Anesthesia Dolorosa: Ear, Eye & Face Pain
A physician who specializes in the use of drugs or other agents that keep patients from feeling pain, as well who treats and regulates changes in critical life functions such as breathing, heart rate and blood pressure during surgery. More Information on Anesthesiologist: Pain Basics
Also Known As: "Regional Anesthesia, Local Anesthesia"
A numbing agent used to prevent pain during medical procedures. Local and regional anesthesia eliminate pain from specific regions, such as the mouth during dental procedures. General anesthesia affects the entire body and causes unconsciousness. More Information on Anesthetic: Oral Medications
A bulging out of part of the wall of a blood vessel. It forms where the wall has weakened, often due to the buildup of plaque. It may also be an inherited condition. Left untreated, aneurysms may burst or tear. More Information on Aneurysm Basics: Aneurysm
"Aneurysm of Septum Primum" is more commonly referred to as "Atrial Aneurysm" in the medical community. Atrial Aneurysm
Also Known As: "Atrial Septal Aneurysm, Left Atrial Aneurysm, Right Atrial Aneurysm, Aneurysm of Septum Secundum"
Bulging of part of the wall of an atrium. When in the wall between atria, it is called atrial septal aneurysm or aneurysm of septum primum (or secundum). It is often congenital and has been linked to increased stroke risk and patent foramen ovale. More Information on Atrial Aneurysm: Aneurysm
"Aneurysm of Septum Secundum" is more commonly referred to as "Atrial Aneurysm" in the medical community. Atrial Aneurysm
Also Known As: "Atrial Septal Aneurysm, Left Atrial Aneurysm, Right Atrial Aneurysm, Aneurysm of Septum Primum"
Bulging of part of the wall of an atrium. When in the wall between atria, it is called atrial septal aneurysm or aneurysm of septum primum (or secundum). It is often congenital and has been linked to increased stroke risk and patent foramen ovale. More Information on Atrial Aneurysm: Aneurysm
"Angel Dust" is more commonly referred to as "PCP" in the medical community. PCP
Also Known As: "Phencyclidine"
A drug developed in the 1950s as an intravenous anesthetic. Today, it is sold illegally as a recreational drug. It can cause symptoms that mimic schizophrenia, such as delusions, hallucinations, paranoia and disordered thinking. More Information on PCP: Alcohol & Substance Abuse
A ring that is surgically implanted around the lower esophagus to help reduce acid reflux. Use of this device is rare due to postsurgical complications (e.g., difficulty swallowing, movement or erosion of the ring). More Information on Angelchik Prosthesis: GERD & Heartburn
Also Known As: "Archangelica Root, Dong Quai, Angelicae Pubescentis, Holy Ghost Root, Bai Zhi, Angelicae Dahuricae, Archangel Root, Dang Gui"
A root from any of a group of Angelica plants or herbs. It may be used in aromatherapy and perfumes. However, some cultures use it as an herbal remedy for loss of appetite, gas or other gastrointestinal problems. More Information on Angelica Root: Herbs & Supplements
Also Known As: "Archangelica Root, Dong Quai, Holy Ghost Root, Bai Zhi, Archangel Root, Dang Gui, Angelicae Pubescentis"
A root from any of a group of Angelica plants or herbs. It may be used in aromatherapy and perfumes. However, some cultures use it as an herbal remedy for loss of appetite, gas or other gastrointestinal problems. More Information on Angelicae Dahuricae: Herbs & Supplements
Also Known As: "Archangelica Root, Dong Quai, Holy Ghost Root, Bai Zhi, Angelicae Dahuricae, Archangel Root, Dang Gui"
A root from any of a group of Angelica plants or herbs. It may be used in aromatherapy and perfumes. However, some cultures use it as an herbal remedy for loss of appetite, gas or other gastrointestinal problems. More Information on Angelicae Pubescentis: Herbs & Supplements
A genetic disorder that leads to developmental delays, speech disorders, and problems with balance and movement. The disorder often involves small head size, hyperactivity and seizures. Most cases are inherited, but some occur spontaneously. More Information on Angelman Syndrome: Pediatric Brain & Nerve
Studies have suggested that people who regularly express their anger intensely (e.g., by lashing out or throwing things) may have a significantly increased risk of both heart disease and stroke. More Information on Anger & the Heart: Heart Risk Factors
Surgical removal of all or part of a blood vessel. The two types of angiectomy are arteriectomy (the surgical removal of all or part of an artery) and phlebectomy (the surgical removal of all or part of a vein). More Information on Angiectomy: Vascular Disease
Also Known As: "Angina Pectoris, Classical Angina"
Chest pain usually caused by a lack of oxygen from restricted blood flow to the heart (cardiac ischemia). Pain may also spread to the neck, jaw or arm. It is the primary symptom of coronary artery disease. More Information on Angina: Chest & Related Pain
Chest pain usually caused by a lack of oxygen from restricted blood flow to the heart (cardiac ischemia). Pain may also spread to the neck, jaw or arm. It is the primary symptom of coronary artery disease. More Information on Angina Pectoris: Chest & Related Pain
Dissolves potentially deadly blood clots in a patient's coronary arteries before the patient undergoes a balloon angioplasty. Also used for preventing blood clots from clogging kidney dialysis grafts. More Information on Angio Jet: Cholesterol
"Angiocardiography" is more commonly referred to as "Coronary Angiogram" in the medical community. Coronary Angiogram
Also Known As: "Coronary Angiography, Coronary Arteriogram"
An x-ray of the arteries located on the surface of the heart (the coronary arteries). It helps the physician to see if any of those arteries are blocked, usually by fatty plaque. More Information on Coronary Angiogram: Catheter Tests & Procedures
Abnormal, often enlarged, blood vessels in the gastrointestinal tract, frequently resulting in bleeding. More Information on Angiodysplasia: Digestive Health Basics
Swelling that occurs beneath the skin instead of on the surface (as in hives). Characterized by deep swelling, usually in the face, tongue, extremities or genitals. More Information on Angioedema: Dermatitis, Eczema & Hives
The process of creating new blood vessels. This may occur naturally, as the result of disease or it may be stimulated or reduced as a treatment for certain conditions (e.g., cancer, heart disease). More Information on Angiogenesis: Heart Basics
Also Known As: "Antiangiogenic, Antiangiogenesis Agents, Antiangiogenesis"
Drugs that block the development of new blood vessels that feed tumors, starving them of oxygen and nutrients. Angiogenesis inhibitors are a new and promising avenue of research in cancer therapy. More Information on Angiogenesis Inhibitors: Cancer Drug & Medication
Also Known As: "Arteriography, Angiography, Arteriogram"
A catheter-based diagnostic test that uses a contrast medium and an x-ray to visualize the size, shape and location of the heart and/or blood vessels (e.g., aorta, coronary arteries, or cerebral arteries). More Information on Angiogram: Catheter Tests & Procedures
A catheter-based diagnostic test that uses a contrast medium and an x-ray to visualize the size, shape and location of the heart and/or blood vessels (e.g., aorta, coronary arteries, or cerebral arteries). More Information on Angiography: Catheter Tests & Procedures
A rare but aggressive form of non Hodgkin's lymphoma that involves the T cells. It is marked by an increase of antibodies in the blood, enlarged lymph nodes, anemia, skin rash, night sweats and other symptoms. More Information on Angioimmunoblastic Lymphadenopathy with Dysproteinemia: Lymphoma (Hodgkin's & Non)
Also Known As: "AIL, Angioimmunoblastic Lymphadenopathy with Dysproteinemia, AILD"
A rare but aggressive form of non Hodgkin's lymphoma that involves the T cells. It is marked by an increase of antibodies in the blood, enlarged lymph nodes, anemia, skin rash, night sweats and other symptoms. More Information on Angioimmunoblastic T Cell Lymphoma: Lymphoma (Hodgkin's & Non)
Dissolves potentially deadly blood clots in a patient's coronary arteries before the patient undergoes a balloon angioplasty. Also used for preventing blood clots from clogging kidney dialysis grafts. More Information on Angiojet: Cholesterol
"Angiomatosis" is more commonly referred to as "Von Hippel Lindau Disease" in the medical community. Von Hippel Lindau Disease
Also Known As: "VHL"
A genetic multi-system disorder marked by the abnormal growth of tumors in certain parts of the body. Some tumors are benign, while others may be cancerous. Treatment depends on the nature, size and location of the tumor. More Information on Von Hippel Lindau Disease: Birth & Genetic Disorders
"Angioplasty" is more commonly referred to as "Balloon Angioplasty" in the medical community. Balloon Angioplasty
Also Known As: "Coronary Angioplasty, Cerebral Angioplasty, Percutaneous Transluminal Coronary Angioplasty, Peripheral Percutaneous Transluminal Angioplasty, PTCA, Balloon Dilation"
A procedure for the treatment of narrowed arteries. A balloon-tipped catheter is inserted into an artery, most commonly the coronary arteries, to press plaque back against the vessel wall. This widens or unblocks the artery to restore blood flow. More Information on Balloon Angioplasty: Catheter Tests & Procedures
Also Known As: "Hemangiosarcoma, Lymphangiosarcoma"
A rare form of cancer that begins within blood vessels (hemangiosarcoma) or lymph vessels (lymphangiosarcoma). More Information on Angiosarcoma: Leukemia & Bone Cancer
A catheter-based diagnostic test in which a fiberoptic device is used to take video images of the internal structures of blood vessels. More Information on Angioscopy: Catheter Tests & Procedures
An infection with the roundworm Angiostrongylus. The two species that infect humans are A. cantonensis (which causes human eosinophilic meningitis) and A. costaricensis (which causes intestinal angiostrongyliasis). More Information on Angiostrongyliasis: Infectious Disease Basics
An infection with the roundworm Angiostrongylus. The two species that infect humans are A. cantonensis (which causes human eosinophilic meningitis) and A. costaricensis (which causes intestinal angiostrongyliasis). More Information on Angiostrongylus Infection: Infectious Disease Basics
Medications that widen blood vessels by preventing a substance called angiotensin II from entering angiotensin II receptors. Angiotensin II is one of several substances in the body that cause blood vessels to tighten and regulates blood pressure. More Information on Angiotensin II Antagonists: Blood Pressure
Also Known As: "A II Blockers, ARBs, Angiotensin II Antagonists"
Medications that widen blood vessels by preventing a substance called angiotensin II from entering angiotensin II receptors. Angiotensin II is one of several substances in the body that cause blood vessels to tighten and regulates blood pressure. More Information on Angiotensin II Receptor Blockers: Blood Pressure
"Angiotensin-Converting Enzyme Inhibitors" is more commonly referred to as "ACE Inhibitors" in the medical community. ACE Inhibitors
Medications that widen blood vessels and lower blood pressure by blocking the production of angiotensin II. ACE stands for angiotensin-converting enzyme. More Information on ACE Inhibitors: Blood Pressure
Inability to experience pleasure from activities that the patient previously found pleasurable. Often associated with severe depression. More Information on Anhedonia: Depression & Bipolar
Also Known As: "Levorphanol, Nalbuphine, Buprenorphine, Oxymorphone, Hydromorphone, Butorphanol, Pentazocine"
A type of narcotic analgesic, medications that reduce pain and most also reduce inflammation. They do not eliminate pain, but mask it by increasing the body's pain threshold. More Information on Anileridine: Pain Medications
An agency of the U.S. Department of Agriculture (USDA) that conducts inspections of animals and plants to prevent emergence of pests and disease, or to control them once they are discovered.
Allergic reaction provoked by exposure to animals, usually caused by airborne dander and/ or dried saliva particles. More Information on Animal Allergies: Animal & Insect Allergies
Pets are the prime source of animal allergies for children. Cats and (to a lesser degree) dogs trigger reactions due to the protein allergens secreted by oil glands in their skin and shed in dander. More Information on Animal Allergies & Children: Pediatric Allergy & Asthma
Also Known As: "Animal Carried Infections, Pet Transmitted Infections, Pet Carried Infections, Animal Transmitted Infections"
Animals, including household pets, can carry many infections. There are many precautions, such as washing hands after handing animals, that can prevent the transmission of these infections. More Information on Animal Borne Diseases: Infectious Disease Basics
Animals, including household pets, can carry many infections. Children are particularly susceptible to these. There are many precautions, such as washing hands after handing animals, that can prevent the transmission of these infections.
Also Known As: "Pet Transmitted Infections, Pet Carried Infections, Animal Transmitted Infections"
Animals, including household pets, can carry many infections. There are many precautions, such as washing hands after handing animals, that can prevent the transmission of these infections. More Information on Animal Carried Infections: Infectious Disease Basics
"Animal Dander" is more commonly referred to as "Dander" in the medical community. Dander
Also Known As: "Pet Dander, Cat Dander, Dog Dander"
Tiny flakes shed from animal skin. All animals shed dander to some extent, regardless of hair length. Dander provokes an allergic reaction in many people. More Information on Dander: Indoor Allergies
Also Known As: "Pet Transmitted Infections, Pet Carried Infections, Animal Carried Infections"
Animals, including household pets, can carry many infections. There are many precautions, such as washing hands after handing animals, that can prevent the transmission of these infections. More Information on Animal Transmitted Infections: Infectious Disease Basics
A belief characteristic in early childhood thinking that nonliving things are powered by a nonphysical entity. This is also a common aspect to some world religions.
Infection of humans or other animals by a nematode of the family Anisakidae. Humans typically are infected after eating undercooked infected marine fish such as herring. The larvae burrow into the stomach wall and cause a mass to form. More Information on Anisakiasis: Gastroenteritis & Food Illness
Reaction to the parasitic worm Anisakis that can mimic a seafood allergy. This intestinal parasite is found in both fish and other types of seafood and is considered to be a food allergen capable of producing an allergic reaction. More Information on Anisakis Allergy: Food Allergy & Intolerance
Infection of humans or other animals by a nematode of the family Anisakidae. Humans typically are infected after eating undercooked infected marine fish such as herring. The larvae burrow into the stomach wall and cause a mass to form. More Information on Anisakis Infection: Gastroenteritis & Food Illness
"Ankyloglossia" is more commonly referred to as "Tongue Tie" in the medical community. Tongue Tie
A condition in which free movement of the tongue is restricted. This occurs because the midline sheath of tissue attached to the base of the tongue (lingual frenum) is attached too far forward. In some cases, it needs surgical correction. More Information on Tongue Tie: Mouth & Tongue Disorders
Also Known As: "Forestier Disease, Diffuse Idiopathic Skeletal Hyperostosis, Spondylitis Deformans, DISH"
A condition marked by bony overgrowth where tendons and ligaments attach to bone. It usually causes no symptoms, but can trigger back or neck stiffness if it affects the spine. More Information on Ankylosing Hyperostosis: Bone Health
Also Known As: "Ankylosis Spondylitis, Bamboo Spine, Rheumatoid Spondylitis, Marie Strümpell Spondylitis"
Chronic disease primarily affecting the spine, which may lead to stiffness of the back. The joints and ligaments that allow the back to move become inflamed, which eventually may cause them to fuse together. More Information on Ankylosing Spondylitis: Arthritis
Also Known As: "Bamboo Spine, Rheumatoid Spondylitis, Marie Strümpell Spondylitis"
Chronic disease primarily affecting the spine, which may lead to stiffness of the back. The joints and ligaments that allow the back to move become inflamed, which eventually may cause them to fuse together. More Information on Ankylosis Spondylitis: Arthritis
"Annuloplasty" is more commonly referred to as "Heart Valve Procedures" in the medical community. Heart Valve Procedures
Also Known As: "Valvoplasty, Balloon Valvuloplasty, Commissurotomy, Valvotomy, Percutaneous Balloon Valvuloplasty, Balloon Commissurotomy, Valvulotomy"
Various procedures to repair or replace heart valves that are damaged as the result of valvular heart disease. More Information on Heart Valve Procedures: Heart Valve
A flexible or rigid Dacron-coated band that provides support and restores the normal dimensions of the valve's annulus (fibrous ring) so that the leaflets can come together properly. More Information on Annuloplasty Ring: Heart Valve
A ring of tough, fibrous tissue on the outside of an intervertebral disc that surrounds the jelly-like center called the nucleus pulposus. When the outer covering tears, the nucleus pulposus may bulge through, or herniate. More Information on Annulus Fibrosis: Back, Neck & Shoulder Pain
A test in which a physician gently touches the anus with a probe to see if it contracts normally. An inability of the anus to pucker may indicate nerve damage. More Information on Anocutaneous Reflex: Anal & Rectal Disorders
"Anomalous Drainage of Pulmonary Veins" is more commonly referred to as "TAPVR" in the medical community. TAPVR
Also Known As: "PAPVC, Total Anomalous Pulmonary Venous Return"
A condition in which the four pulmonary veins that bring oxygen-rich blood from the lungs back to the heart are not connected to the left atrium, the chamber into which they are supposed to re-enter the heart. More Information on TAPVR: Pediatric Heart
An abscess around the anus or rectum that may cause pain, swelling, discharge of puss or fever. More Information on Anorectal Abscess: Anal & Rectal Disorders
Also Known As: "Anal Fistula, Rectal Fistula, Fistula In Ano"
A duct or passage that develops between the anus or rectum and the skin, often the result of an abscess spreading to the skin. More Information on Anorectal Fistula: Anal & Rectal Disorders
An imaging test used to check for abnormalities in the anal and rectal areas. A narrow instrument that emits sound waves is inserted into the anus and rectum, producing images of the anal sphincters, rectal wall and pelvic muscles. More Information on Anorectal Ultrasonography: Digestive Imaging Tests
An imaging test used to check for abnormalities in the anal and rectal areas. A narrow instrument that emits sound waves is inserted into the anus and rectum, producing images of the anal sphincters, rectal wall and pelvic muscles. More Information on Anorectal Ultrasound: Digestive Imaging Tests
Also Known As: "Appetite Loss, Loss of Appetite, Poor Appetite"
Any abnormal loss of appetite. It may result in significant weight loss. Causes include cancer, AIDS, mental disorder or other diseases. It can also be a side effect of cancer treatments. It is not the same as anorexia nervosa (an eating disorder).
Anorexia nervosa is an eating disorder marked by excessive fasting and/or loss of appetite. It is most common in young women. It can eventually affect the electrical system of the heart. More Information on Anorexia & Your Heart: Eating Disorders
An eating disorder marked by a distorted body image, excessive weight loss, reduced intake of food or complete fasting and an intense fear of gaining weight. More Information on Anorexia Eating Disorder: Eating Disorders
An eating disorder marked by a distorted body image, excessive weight loss, reduced intake of food or complete fasting and an intense fear of gaining weight. More Information on Anorexia Nervosa: Eating Disorders
A direct visual exam of the anal canal using a special instrument called an anoscope. It is frequently used to look for fissures, fistulae and hemorrhoids. More Information on Anoscope Exam: Anal & Rectal Disorders
A direct visual exam of the anal canal using a special instrument called an anoscope. It is frequently used to look for fissures, fistulae and hemorrhoids. More Information on Anoscopy: Anal & Rectal Disorders
"ANS" is more commonly referred to as "Autonomic Nervous System" in the medical community. Autonomic Nervous System
The body system that controls involuntary functions (e.g., pulse). It is made up of the sympathetic nervous system (which speeds up functions during stress) and the parasympathetic nervous system (which slows and relaxes functions after stress). More Information on Autonomic Nervous System: Brain & Nerve Basics
The fluid-filled sac (bursa) between the tibial collateral ligament of the knee joint and the tendons of the sartorius, gracilis, and semitendinosus muscles. More Information on Anserine Bursa: Arm & Leg Pain
Inflammation of the bursa between the tibial collateral ligament of the knee joint and the tendons of the leg muscles (sartorius, gracilis and semitendinosus muscles). More Information on Anserine Bursitis: Arm & Leg Pain
Also Known As: "Sodium Bicarbonate, Magnesium, Aluminum Hydroxide"
Over-the-counter medications that reduce the acid levels in the stomach fluids, including substances such as magnesium, aluminum hydroxide and sodium bicarbonate. They are often used to relieve heartburn, upset stomach or acid indigestion. More Information on Antacids: Digestive Medications
A posture, walk or limp, adopted to avoid or reduce pain within a weight-bearing structure (e.g., knee, hip). More Information on Antalgic Gait: Arm & Leg Pain
An inability to store and retrieve long-term memory after a given point in time, particularly following head injury. It sometimes occurs with, but differs from, retrograde amnesia. More Information on Antegrade Amnesia: Cognitive & Related Disorders
"Anterior Cerebral Artery" is more commonly referred to as "Cerebral Artery" in the medical community. Cerebral Artery
Also Known As: "Posterior Cerebral Artery, Middle Cerebral Artery"
The arteries responsible for supplying the brain with oxygen-rich blood. Reduced blood flow in these arteries can cause cerebral ischemia, which may lead to strokes or transient ischemic attacks (TIAs). More Information on Cerebral Artery: Stroke
"Anterior Cervical Decompression" is more commonly referred to as "Cervical Spine Surgery" in the medical community. Cervical Spine Surgery
Also Known As: "Cervical Discectomy, Cervical Spinal Fusion, Cervical Laminectomy, Posterior Cervical Laminectomy, Cervical Neck Surgery, Cervical Microdiscectomy, Cervical Decompression"
Surgery to correct pain and other symptoms caused by damage to the cervical spine (the portion of the spinal cord located in the neck). More Information on Cervical Spine Surgery: Back, Neck & Shoulder Pain
Also Known As: "Anterior Choroidal Artery Occlusion"
A restriction of blood flow inside the brain that is caused by the narrowing, hardening or blockage of the anterior choroidal artery. It may be caused by atherosclerosis, aneurysms, trauma or other conditions. More Information on Anterior Choroidal Artery Anuerysm: Stroke
Also Known As: "Anterior Choroidal Artery Anuerysm"
A restriction of blood flow inside the brain that is caused by the narrowing, hardening or blockage of the anterior choroidal artery. It may be caused by atherosclerosis, aneurysms, trauma or other conditions. More Information on Anterior Choroidal Artery Occlusion: Stroke
Also Known As: "Anterior Choroidal Artery Occlusion, Anterior Choroidal Artery Anuerysm"
A restriction of blood flow inside the brain that is caused by the narrowing, hardening or blockage of the anterior choroidal artery. It may be caused by atherosclerosis, aneurysms, trauma or other conditions. More Information on Anterior Choroidal Artery Syndrome: Stroke
A stabilizing ligament within the center of the knee joint that prevents hyperextension and excessive rotation of the joint. The ligament is commonly injured and treated with surgery and rehabilitative exercises. More Information on Anterior Cruciate Ligament: Arm & Leg Pain
A common injury to the stabilizing ligament within the center of the knee joint. It is usually caused by twisting the leg while applying full downward pressure. A complete tear requires reconstruction and up to a year of rehabilitation. More Information on Anterior Cruciate Ligament Tear: Arm & Leg Pain
"Anterior Fascicular Block" is more commonly referred to as "Left Anterior Bundle Branch Block" in the medical community. Left Anterior Bundle Branch Block
Also Known As: "Left Anterior Hemiblock, Block of Anterior Division of Left Bundle Branch, Left Anterior Divisional Block"
An abnormal heart rhythm in which the electrical impulses traveling through the anterior (front) section of the heart's left bundle branch are delayed or blocked. It causes an irregular heart rhythm (arrhythmia). More Information on Left Anterior Bundle Branch Block: Arrhythmia
"Anterior Mediastinoscopy" is more commonly referred to as "Mediastinoscopy" in the medical community. Mediastinoscopy
Also Known As: "Mediastinoscopy with Biopsy, Mediastinotomy, Chamberlain Procedure, Mediastinotomy with Biopsy, Anterior Mediastinotomy"
A test in which a small incision is made in the neck through which a mediastinoscope (lighted instrument) is inserted. This allows physicians to visually examine the lymph nodes and other chest structures, as well as take tissue samples (biopsy). More Information on Mediastinoscopy: Lung & Chest Cancer
"Anterior Mediastinotomy" is more commonly referred to as "Mediastinoscopy" in the medical community. Mediastinoscopy
Also Known As: "Anterior Mediastinoscopy, Mediastinoscopy with Biopsy, Mediastinotomy, Chamberlain Procedure, Mediastinotomy with Biopsy"
A test in which a small incision is made in the neck through which a mediastinoscope (lighted instrument) is inserted. This allows physicians to visually examine the lymph nodes and other chest structures, as well as take tissue samples (biopsy). More Information on Mediastinoscopy: Lung & Chest Cancer
A reduction of blood flow to the spinal cord in the section supplied by the anterior spinal artery. It is often caused by atherosclerosis of the aorta or an aortic dissection. Symptoms include weakness and a loss of sensation below the injured area. More Information on Anterior Spinal Artery Occlusion Syndrome: Vascular Disease
Also Known As: "Anterior Spinal Artery Occlusion Syndrome"
A reduction of blood flow to the spinal cord in the section supplied by the anterior spinal artery. It is often caused by atherosclerosis of the aorta or an aortic dissection. Symptoms include weakness and a loss of sensation below the injured area. More Information on Anterior Spinal Artery Syndrome: Vascular Disease
An inability to store and retrieve long-term memory after a given point in time, particularly following head injury. It sometimes occurs with, but differs from, retrograde amnesia. More Information on Anterograde Amnesia: Cognitive & Related Disorders
A type of phytochemical related to flavonoids. They are believed to have antioxidant properties and are responsible for red, purple and blue colors in plants. They can be found in blueberries, blackberries, cherries, kiwi, plums and eggplant. More Information on Anthocyanins: Functional Foods
Cream or ointment applied to the skin of people with psoriasis (chronic, genetic skin disorder). More Information on Anthralin: Skin Drugs & Medications
Also Known As: "Bacillus Anthracis Infection, Gastrointestinal Anthrax, Cutaneous Anthrax, Inhalation Anthrax"
A rare but serious bacterial infection that is housed in spores. The three main types affect the skin (cutaneous), lungs (inhalation) or gastrointestinal tract (gastrointestinal). Although anthrax may affect livestock workers, it is now a potential bioterror threat. More Information on Anthrax: Bioterror Related Diseases
"Anti Epileptic Medication" is more commonly referred to as "Seizure Medications" in the medical community. Seizure Medications
Also Known As: "Epilepsy Medications, Anti Seizure Medication"
Medications that prevent, reduce or stop convulsions or seizures. They are sometimes used to treat other conditions, such as depression. More Information on Seizure Medications: Epilepsy & Seizure
Medications that inhibit the effects of estrogen on tumors that rely on this hormone for growth. They may be used in the treatment of breast cancers. More Information on Anti Estrogens: Cancer Drug & Medication
Also Known As: "Rhumab E25 Antibody, Omalizumab, Monoclonal Anti IgE Antibody"
An injectable drug that reduces asthma and allergic reactions. The drug stops the release of histamine, which causes allergic reactions, by blocking antibodies (IgE) from binding with mast cells. More Information on Anti IgE Antibody: Allergy & Asthma Drugs
Type of medication used to reduce inflammation. They can also be useful in reducing the pain of certain types of headaches or numerous other pain conditions. More Information on Anti Inflammatories: Pain Medications
Type of medication used to reduce inflammation. They can also be useful in reducing the pain of certain types of headaches or numerous other pain conditions. More Information on Anti Inflammatory Drugs: Pain Medications
Type of medication used to reduce inflammation, most commonly for arthritis and the relief of pain. They can also be useful in the treatment of inflammatory bowel disease. More Information on Anti Inflammatory Drugs & Digestive Disorders: Digestive Medications
Also Known As: "Hughes Syndrome, Lupus-Like Syndrome, APA, APLS, Anticardiolypin Antibody Syndrome"
A condition in which certain antibodies normally associated with lupus are found in the blood with or without the patient having lupus. It can cause blood clots and a low platelet count. In women, it can cause miscarriages. More Information on Anti Phospholipid Syndrome: Anemia & Blood Disorders
"Anti Reflux Surgery" is more commonly referred to as "Fundoplication" in the medical community. Fundoplication
Also Known As: "Esophagogastric Fundoplasty, Fundic Wrapping"
A surgical procedure where part of the stomach is completely or partially wrapped around the lower part of the esophagus to prevent acid reflux. It may also be used to treat hiatal hernia and other conditions. More Information on Fundoplication: GERD & Heartburn
"Anti Seizure Medication" is more commonly referred to as "Seizure Medications" in the medical community. Seizure Medications
Also Known As: "Epilepsy Medications, Anti Epileptic Medication"
Medications that prevent, reduce or stop convulsions or seizures. They are sometimes used to treat other conditions, such as depression. More Information on Seizure Medications: Epilepsy & Seizure
Also Known As: "TNF Inhibitors, Anti Tumor Necrosis Factor, Tumor Necrosis Factor Inhibitors"
Medications frequently used in the treatment of rheumatoid arthritis. They may also be used to treat some forms of inflammatory bowel disease, such as Crohn's disease. More Information on Anti TNF: Digestive Medications
Also Known As: "TNF Inhibitors, Tumor Necrosis Factor Inhibitors"
Medications frequently used in the treatment of rheumatoid arthritis. They may also be used to treat some forms of inflammatory bowel disease, such as Crohn's disease. More Information on Anti Tumor Necrosis Factor: Digestive Medications
Also Known As: "Antiandrogenic, Androgen Antagonists"
Medications that block the effects of the hormone androgen and testosterone are used to treat acne, male pattern baldness and hirsutism (excessive hair growth). They may also be used to treat conditions such as cancer and sexual disorders. More Information on Antiandrogen Medications: Alopecia (Hair Loss)
Also Known As: "Androgen Antagonists, Antiandrogen Medications"
Medications that block the effects of the hormone androgen and testosterone are used to treat acne, male pattern baldness and hirsutism (excessive hair growth). They may also be used to treat conditions such as cancer and sexual disorders. More Information on Antiandrogenic: Alopecia (Hair Loss)
Also Known As: "Antiandrogenic, Androgen Antagonists, Antiandrogen Medications"
Medications that block the effects of the hormone androgen and testosterone are used to treat acne, male pattern baldness and hirsutism (excessive hair growth). They may also be used to treat conditions such as cancer and sexual disorders. More Information on Antiandrogens: Alopecia (Hair Loss)
Also Known As: "Antiangiogenic, Antiangiogenesis Agents"
Drugs that block the development of new blood vessels that feed tumors, starving them of oxygen and nutrients. Angiogenesis inhibitors are a new and promising avenue of research in cancer therapy. More Information on Antiangiogenesis: Cancer Drug & Medication
Drugs that block the development of new blood vessels that feed tumors, starving them of oxygen and nutrients. Angiogenesis inhibitors are a new and promising avenue of research in cancer therapy. More Information on Antiangiogenesis Agents: Cancer Drug & Medication
Also Known As: "Antiangiogenesis Agents, Antiangiogenesis"
Drugs that block the development of new blood vessels that feed tumors, starving them of oxygen and nutrients. Angiogenesis inhibitors are a new and promising avenue of research in cancer therapy. More Information on Antiangiogenic: Cancer Drug & Medication
Anything that interferes with the process of apoptosis, a type of cell death in which a series of molecular changes with the cells lead to its death. More Information on Antiapoptotic: Cancer Basics
Medications used to treat all types of abnormal heart rhythms (arrhythmias) except an abnormally slow heartbeat. Some act directly on the heart to slow it down, and others act to restore a normal beating pattern. More Information on Antiarrhythmics: Arrhythmia
"Antibiotic & Decongestant Nasal Sprays" is more commonly referred to as "Nasal Sprays" in the medical community. Nasal Sprays
Also Known As: "Antihistamine Nasal Sprays, Anticholinergic Nasal Sprays, Decongestant Nasal Sprays, Lubricant Nasal Sprays"
Medications used to relieve nasal allergy and cold symptoms that are delivered in the form a fine mist directly into the nasal passages. More Information on Nasal Sprays: Nose & Throat
Inflammation of the colon caused by antibiotics. These medications may disrupt the balance of bacteria in the intestines, allowing one type or another to overgrow, causing inflammation and irritation. More Information on Antibiotic Associated Colitis: Inflammatory Bowel (Colitis)
Inflammation of the colon caused by antibiotics. These medications may disrupt the balance of bacteria in the intestines, allowing one type or another to overgrow, causing inflammation and irritation. More Information on Antibiotic Induced Colitis: Inflammatory Bowel (Colitis)
"Antibiotic Prophylaxis" is more commonly referred to as "Prophylaxis" in the medical community. Prophylaxis
Rules that need to be followed to guard against disease. Also refers to a professional dental cleaning that removes plaque and tartar from the crowns of the teeth and polishes away stains on the enamel. More Information on Prophylaxis: Healthcare Basics
Also Known As: "Antimicrobial Resistance, Bacterial Resistance"
The ability of a microorganism to withstand the effects of an antibiotic. The improper use of antibiotics has made a number of these drugs less effective against certain bacteria. More Information on Antibiotic Resistance: Cold & Infections Medications
Medications that kill or slow the growth of harmful microorganisms, such as bacteria. They have no effect on viruses. They are used to treat infections and are given before some medical procedures to prevent infections in some patients. More Information on Antibiotics: Cold & Infections Medications
Medications that kill or slow the growth of harmful microorganisms, such as bacteria. They have no effect on viruses. They are used to treat some heart infections and are given before medical/dental procedures to prevent infections in some patients. More Information on Antibiotics & Heart Disease: Heart Drug & Medication
Proteins made by white blood cells that find and destroy foreign substances (e.g., bacteria, viruses, toxins) in the blood. Antibodies are part of the immune system. More Information on Antibodies: Infectious Disease Basics
Also Known As: "Hughes Syndrome, Lupus-Like Syndrome, Anti Phospholipid Syndrome, APA, APLS"
A condition in which certain antibodies normally associated with lupus are found in the blood with or without the patient having lupus. It can cause blood clots and a low platelet count. In women, it can cause miscarriages. More Information on Anticardiolypin Antibody Syndrome: Anemia & Blood Disorders
"Anticholinergic Nasal Sprays" is more commonly referred to as "Nasal Sprays" in the medical community. Nasal Sprays
Also Known As: "Decongestant Nasal Sprays, Lubricant Nasal Sprays, Antibiotic & Decongestant Nasal Sprays, Antihistamine Nasal Sprays"
Medications used to relieve nasal allergy and cold symptoms that are delivered in the form a fine mist directly into the nasal passages. More Information on Nasal Sprays: Nose & Throat
Also Known As: "Cholinergic Blockers, Maintenance Blockers"
A class of medications that blocks the effects of acetylcholine (a neurotransmitter). They are used to prevent or reduce symptoms such as muscle spasms and tremors. More Information on Anticholinergics: Neuro Drug & Medication
Medications that decrease the ability of the blood to clot. While clotting is a necessary and life-sustaining function, anticoagulants reduce the risk of a blood clot forming and blocking blood flow through a major blood vessel. More Information on Anticoagulants: Blood Clot
Medications primarily used to prevent seizures. They may also be prescribed to treat bipolar disorder and some personality disorders. More Information on Anticonvulsant Drugs: Psychiatric Medications
Medications primarily used to prevent seizures. They may also be prescribed to treat bipolar disorder and some personality disorders. More Information on Anticonvulsant Medications: Psychiatric Medications
Also Known As: "Anticonvulsant Drugs, Anticonvulsant Medications"
Medications primarily used to prevent seizures. They may also be prescribed to treat bipolar disorder and some personality disorders. More Information on Anticonvulsants & Emotional Disorders: Psychiatric Medications
Class of drug normally used to prevent seizures. Some types of drugs help reduce pain originating from a damaged nerve. More Information on Anticonvulsants & Pain Management: Pain Management
Medications primarily used to prevent or treat depression, anxiety and obsessional problems. They work by increasing the level of neurotransmitters in the brain. More Information on Antidepressant Drug: Depression & Bipolar
Medications primarily used to prevent or treat depression, anxiety and obsessional problems. They work by increasing the level of neurotransmitters in the brain. More Information on Antidepressant Medications: Depression & Bipolar
Also Known As: "Antidepressant Medications, Antidepressant Drug"
Medications primarily used to prevent or treat depression, anxiety and obsessional problems. They work by increasing the level of neurotransmitters in the brain. More Information on Antidepressants: Depression & Bipolar
Medications primarily used to prevent or treat depression, anxiety and obsessional problems. They work by increasing the level of neurotransmitters in the brain. Antidepressant use by children and teens must be monitored closely. More Information on Antidepressants & Children: Psychiatric Medications
Medicines used to treat depression and sometimes chronic pain by slowing the removal of certain chemicals from the brain. More Information on Antidepressants & Pain Relief: Pain Medications
Also Known As: "Antihyperglycemic Agents, Oral Hypoglycemic Agents, Hypoglycemic Agents"
Medications used primarily in treatment of type 2 diabetes. They act in varying ways to decrease the amount of glucose circulating in the blood (e.g., slowing digestion, increasing insulin production or absorption). In addition to pills, there are two new injected medications, one of which is approved to treat type 1 diabetes. More Information on Antidiabetic Agents: Diabetes & Endocrine Drugs
A class of medications used to alleviate symptoms associated with some neurological disorders (e.g., Parkinson's, multiple sclerosis). They work by improving muscle control and reducing stiffness, allowing for more normal body movements. More Information on Antidyskinetic Agents: Neuro Drug & Medication
A class of medications used to alleviate symptoms associated with some neurological disorders (e.g., Parkinson's, multiple sclerosis). They work by improving muscle control and reducing stiffness, allowing for more normal body movements. More Information on Antidyskinetic Drugs: Neuro Drug & Medication
Also Known As: "Antidyskinetic Agents, Antidyskinetic Drugs"
A class of medications used to alleviate symptoms associated with some neurological disorders (e.g., Parkinson's, multiple sclerosis). They work by improving muscle control and reducing stiffness, allowing for more normal body movements. More Information on Antidyskinetics: Neuro Drug & Medication
Medications used in the prevention or treatment of nausea and vomiting. It may be prescribed to cancer patients undergoing chemotherapy. More Information on Antiemetics & Cancer Treatment: Cancer Drug & Medication
Medications the block the production or actions of estrogen, a hormone that promotes female characteristics. More Information on Antiestrogen Agents: Cancer Drug & Medication
Medications the block the production or actions of estrogen, a hormone that promotes female characteristics. More Information on Antiestrogens: Cancer Drug & Medication
Any substance that triggers the immune system to produce antibodies to defend the body against infection or disease. More Information on Antigen: Infectious Disease Basics
"Antigen Presenting Cell" is more commonly referred to as "Macrophages" in the medical community. Macrophages
A type of white blood cell of the immune system that ingests damaged cells or antigens (such as viruses or bacteria). It also stimulates the production of T cells to further fight invaders. More Information on Macrophages: Infectious Disease Basics
The gradual evolution of viral strains through mutations. This occurs to defend viruses from the attack of the immune systems of their hosts, making it harder for them to be destroyed. More Information on Antigenic Drift: Infectious Disease Basics
"Antiglobulin Test" is more commonly referred to as "Coomb's Test" in the medical community. Coomb's Test
A blood test used to identify the cause of anemia (lack of red blood cells). It identifies antibodies that attach to red blood cells or platelets and destroy them. More Information on Coomb's Test: Cancer Lab Tests
Also Known As: "Antihistamine Medication, Antihistamine Medicine"
A group of drugs that block the effects of histamine, a chemical released during an allergic reaction. They are designed to reduce various cold and allergy symptoms (e.g., sneezing, itching, runny nose). More Information on Antihistamine Drug: Cold & Infections Medications
Also Known As: "Antihistamine Medicine, Antihistamine Drug"
A group of drugs that block the effects of histamine, a chemical released during an allergic reaction. They are designed to reduce various cold and allergy symptoms (e.g., sneezing, itching, runny nose). More Information on Antihistamine Medication: Cold & Infections Medications
Also Known As: "Antihistamine Drug, Antihistamine Medication"
A group of drugs that block the effects of histamine, a chemical released during an allergic reaction. They are designed to reduce various cold and allergy symptoms (e.g., sneezing, itching, runny nose). More Information on Antihistamine Medicine: Cold & Infections Medications
"Antihistamine Nasal Sprays" is more commonly referred to as "Nasal Sprays" in the medical community. Nasal Sprays
Also Known As: "Anticholinergic Nasal Sprays, Decongestant Nasal Sprays, Lubricant Nasal Sprays, Antibiotic & Decongestant Nasal Sprays"
Medications used to relieve nasal allergy and cold symptoms that are delivered in the form a fine mist directly into the nasal passages. More Information on Nasal Sprays: Nose & Throat
Also Known As: "Antihistamine Medicine, Antihistamine Drug, Antihistamine Medication"
A group of drugs that block the effects of histamine, a chemical released during an allergic reaction. They are designed to reduce various cold and allergy symptoms (e.g., sneezing, itching, runny nose). More Information on Antihistamines: Cold & Infections Medications
A group of drugs that block the effects of histamine, a chemical released during an allergic reaction. They are designed to reduce the symptoms (e.g., sneezing, itching, runny nose) caused by an allergic reaction. More Information on Antihistamines for Allergies & Asthma: Allergy & Asthma Drugs
A group of drugs that block the effects of histamine, a chemical released during an allergic reaction. They reduce allergic symptoms, including rashes and hives. More Information on Antihistamines for Skin Conditions: Skin Drugs & Medications
Any therapy (e.g., medications, surgery, radiation) to reduce the production or block the action of certain hormones that may stimulate tumor growth. More Information on Antihormone Therapy: Chemo & Radiation Therapy
Also Known As: "Oral Hypoglycemic Agents, Hypoglycemic Agents"
Medications used primarily in treatment of type 2 diabetes. They act in varying ways to decrease the amount of glucose circulating in the blood (e.g., slowing digestion, increasing insulin production or absorption). In addition to pills, there are two new injected medications, one of which is approved to treat type 1 diabetes. More Information on Antihyperglycemic Agents: Diabetes & Endocrine Drugs
Medications used to treat high blood pressure (hypertension), frequently prescribed to people with diabetes. More Information on Antihypertensives & Endocrine Disorders: Diabetes & Endocrine Drugs
An antibody that, when detected in blood, may indicate rheumatoid arthritis. It is highly specific, but not very sensitive. It may used in conjunction with other, more sensitive blood tests (e.g., rheumatoid factor). More Information on Antikeratin Antibody: Arthritis
"Antilipemic Agents" is more commonly referred to as "Cholesterol Reducing Drugs" in the medical community. Cholesterol Reducing Drugs
Also Known As: "Cholesterol Reducers, Cholesterol Blocker, Cholesterol Medication, Cholesterol Reducing Medications, Cholesterol Drug, Cholesterol Lowering Medication, Cholesterol Lowering Drug"
Medications used in the treatment of high cholesterol. They include statins, bile acid resins, nicotinic acid (niacin) and fibrates. More Information on Cholesterol Reducing Drugs: Cholesterol
Also Known As: "Antimalarial Drugs, Antimalarial Medications, Antimalarials"
Drugs that prevent or relieve the symptoms of malaria (infectious disease characterized by chills, fever and sweating transmitted to humans by the bite of an infected female anopheles mosquito). More Information on Antimalarial Agents: Skin Drugs & Medications
Also Known As: "Antimalarial Medications, Antimalarials"
Drugs that prevent or relieve the symptoms of malaria (infectious disease characterized by chills, fever and sweating transmitted to humans by the bite of an infected female anopheles mosquito). More Information on Antimalarial Drugs: Skin Drugs & Medications
Also Known As: "Antimalarials, Antimalarial Drugs"
Drugs that prevent or relieve the symptoms of malaria (infectious disease characterized by chills, fever and sweating transmitted to humans by the bite of an infected female anopheles mosquito). More Information on Antimalarial Medications: Skin Drugs & Medications
Also Known As: "Antimalarial Drugs, Antimalarial Medications"
Drugs that prevent or relieve the symptoms of malaria (infectious disease characterized by chills, fever and sweating transmitted to humans by the bite of an infected female anopheles mosquito). More Information on Antimalarials: Skin Drugs & Medications
Also Known As: "Cytarabine, Capecitabine, Azacitidine, Thioguanine, Fludarabine, Fluorouracil, Mercaptopurine"
Medications that block the body's chemical process, such as those that create chemical, proteins and substances needed for cells to grow and multiply. They may be used to slow the growth of tumors. More Information on Antimetabolites: Cancer Drug & Medication
Medications used in the treatment or prevention of periodontal disease that either kill or inhibit the growth of harmful organisms (e.g., bacteria). Types include antibiotics, antiseptics, antifungals and others. More Information on Antimicrobial Drugs & Dental Health: Oral Medications
The ability of a microorganism to withstand the effects of an antibiotic. The improper use of antibiotics has made a number of these drugs less effective against certain bacteria. More Information on Antimicrobial Resistance: Cold & Infections Medications
"Antimicrotubule Agents" is more commonly referred to as "Mitotic Inhibitors" in the medical community. Mitotic Inhibitors
Also Known As: "Taxanes, Antimitotic Agents"
A class of anticancer medications that work by interfering with cell division (mitosis). More Information on Mitotic Inhibitors: Cancer Drug & Medication
"Antimitotic Agents" is more commonly referred to as "Mitotic Inhibitors" in the medical community. Mitotic Inhibitors
Also Known As: "Antimicrotubule Agents, Taxanes"
A class of anticancer medications that work by interfering with cell division (mitosis). More Information on Mitotic Inhibitors: Cancer Drug & Medication
A class of medications that slows down the contractions of intestinal muscles so that stool travels more slowly through the digestive tract, allowing more fluid to be absorbed by the intestines. More Information on Antimotility Drugs: Digestive Medications
A class of medications that inhibits the process of cell growth (neoplasm). They may be used in cancer treatment. More Information on Antineoplastic Agents: Cancer Drug & Medication
A class of medications that inhibits the process of cell growth (neoplasm). They may be used in cancer treatment. More Information on Antineoplastics: Cancer Drug & Medication
Experimental synthetic compounds that may have some anti-tumor properties. Clinical trials have not yet proven their safety or effectiveness in cancer treatment. More Information on Antineoplastons: Cancer Drug & Medication
Antibodies that attack the body's own tissues, mistaking them for foreign invaders. Blood tests can detect these antibodies, which may indicate diseases such as lupus or rheumatoid arthritis. More Information on Antinuclear Antibodies: Arthritis
Blood tests to detect these antinuclear antibodies that attack the body's own tissues, mistaking them for foreign invaders. They may be used to diagnose diseases such as lupus or rheumatoid arthritis. More Information on Antinuclear Antibody Tests: Pain Lab Tests
Substances that prevent or slow oxidation. In the body, they protect cells from being damaged by "oxygen free radicals," which have been linked to aging, heart disease, cancer and stroke. They include vitamins A, C and E. More Information on Antioxidant Supplements: Vitamins
Substances that prevent or slow oxidation. In the body, they protect cells from being damaged by "oxygen free radicals," which have been linked to aging, heart disease, cancer and stroke. They include vitamins A, C and E. More Information on Antioxidant Vitamins: Vitamins
Also Known As: "Antioxidant Vitamins, Antioxidant Supplements"
Substances that prevent or slow oxidation. In the body, they protect cells from being damaged by "oxygen free radicals," which have been linked to aging, heart disease, cancer and stroke. They include vitamins A, C and E. More Information on Antioxidants: Vitamins
Substances that prevent or slow oxidation. In the body, they protect cells from being damaged by "oxygen free radicals," which have been linked to cancer, aging, heart disease and stroke. Antioxidant vitamins include vitamins A, C and E. More Information on Antioxidants & Cancer: Cancer Basics
Also Known As: "Antiparasitic Drugs, Antiparasitic Medications, Antiparasitics"
Drugs that destroy or inhibit the growth and reproduction of human or animal parasites. More Information on Antiparasitic Agents: Skin Drugs & Medications
Also Known As: "Antiparasitic Medications, Antiparasitics"
Drugs that destroy or inhibit the growth and reproduction of human or animal parasites. More Information on Antiparasitic Drugs: Skin Drugs & Medications
Also Known As: "Antiparasitics, Antiparasitic Drugs"
Drugs that destroy or inhibit the growth and reproduction of human or animal parasites. More Information on Antiparasitic Medications: Skin Drugs & Medications
Also Known As: "Hughes Syndrome, Lupus-Like Syndrome, Anticardiolypin Antibody Syndrome, Anti Phospholipid Syndrome, APA, APLS"
A condition in which certain antibodies normally associated with lupus are found in the blood with or without the patient having lupus. It can cause blood clots and a low platelet count. In women, it can cause miscarriages. More Information on Antiphospholipid Syndrome: Anemia & Blood Disorders
Medications that block the formation of blood clots by decreasing the ability of the body's natural blood-clotters (platelets) to bind together (aggregate). More Information on Antiplatelet Medications: Blood Clot
Also Known As: "Antithrombocytes, Antiplatelet Medications"
Medications that block the formation of blood clots by decreasing the ability of the body's natural blood-clotters (platelets) to bind together (aggregate). More Information on Antiplatelets: Blood Clot
"Antipsoriatics" is more commonly referred to as "Psoriasis Medications" in the medical community. Psoriasis Medications
Variety of drugs that include antibiotics, antifungals, corticosteroids, coal tar and others. These are available in topical or shampoo form. In severe cases, oral or injectable immunosuppressive medications may be prescribed. More Information on Psoriasis Medications: Psoriasis & Autoimmune Skin
Also Known As: "Conventional Antipsychotics, Neuroleptic Medications, Neuroleptics, Antipsychotic Medications, Atypical Antipsychotics, Typical Antipsychotics, Antipsychotic Medicine"
Medications primarily used to treat psychoses, such as schizophrenia, mania and delusional disorder. They may control such symptoms as delusions and hallucinations and may have some mood-stabilizing effects. More Information on Antipsychotic Drugs: Schizophrenia & Psychosis
Also Known As: "Conventional Antipsychotics, Neuroleptic Medications, Neuroleptics, Atypical Antipsychotics, Typical Antipsychotics, Antipsychotic Medicine, Antipsychotic Drugs"
Medications primarily used to treat psychoses, such as schizophrenia, mania and delusional disorder. They may control such symptoms as delusions and hallucinations and may have some mood-stabilizing effects. More Information on Antipsychotic Medications: Schizophrenia & Psychosis
Also Known As: "Conventional Antipsychotics, Neuroleptic Medications, Neuroleptics, Atypical Antipsychotics, Typical Antipsychotics, Antipsychotic Drugs, Antipsychotic Medications"
Medications primarily used to treat psychoses, such as schizophrenia, mania and delusional disorder. They may control such symptoms as delusions and hallucinations and may have some mood-stabilizing effects. More Information on Antipsychotic Medicine: Schizophrenia & Psychosis
Also Known As: "Conventional Antipsychotics, Antipsychotic Drugs, Neuroleptic Medications, Neuroleptics, Antipsychotic Medications, Atypical Antipsychotics, Typical Antipsychotics, Antipsychotic Medicine"
Medications primarily used to treat psychoses, such as schizophrenia, mania and delusional disorder. They may control such symptoms as delusions and hallucinations and may have some mood-stabilizing effects. More Information on Antipsychotics: Schizophrenia & Psychosis
A substance that kills bacteria. The most common is rubbing alcohol. Antiseptic rinses may be used at injection sites or for oral health. More Information on Antiseptic: Healthcare Basics
A disorder characterized by complete disregard for others and interest only in the self. Patients are typically very antisocial and impulsive and may be violent and deceitful. More Information on Antisocial Personality Disorder: Personality Disorders
Also Known As: "Anticholinergics, Cholinergic Blockers, Maintenance Blockers"
A class of medications that blocks the effects of acetylcholine (a neurotransmitter). They are used to prevent or reduce symptoms such as muscle spasms and tremors. More Information on Antispasmodics: Neuro Drug & Medication
Medications that reduce or stop muscle spasms. Some types are used to reduce spasms in the gastrointestinal tract, particularly in the intestines, such as may occur with irritable bowel syndrome or other gastrointestinal problems. More Information on Antispasmodics & Digestive Disorders: Digestive Medications
A type of bronchodilator, medication that open bronchial tubes to improve breathing. Antispasmodics also help clear mucus from the airways. They work differently and more slowly than fast-acting bronchodilators. More Information on Antispasmodics for Asthma & Allergies: Allergy & Asthma Drugs
Also Known As: "ASO Test, Streptococcal Antibody Test, Antistreptolysin-O Titer, ASOT"
A blood test that measures ASO, an antibody generated by the body in response to infection by a specific type of bacteria called Group A Streptococcus. High levels may indicate an infection, such as endocarditis, rheumatic fever or scarlet fever. More Information on Antistreptolysin O Test: Blood Tests
Also Known As: "ASO Test, Streptococcal Antibody Test, ASOT"
A blood test that measures ASO, an antibody generated by the body in response to infection by a specific type of bacteria called Group A Streptococcus. High levels may indicate an infection, such as endocarditis, rheumatic fever or scarlet fever. More Information on Antistreptolysin-O Titer: Blood Tests
Medications that block the formation of blood clots by decreasing the ability of the body's natural blood-clotters (platelets) to bind together (aggregate). More Information on Antithrombocytes: Blood Clot
"Antithymocyte Globulin" is more commonly referred to as "Cyclosporine" in the medical community. Cyclosporine
Also Known As: "Tacrolimus, Efalizumab, Pimecrolimus, Alefacept, Anakinra"
Any one of a type of immunosuppressant, medications that suppress the immune system. They may be used to treat conditions such as rheumatoid arthritis as well as to prevent rejection following organ transplants. More Information on Cyclosporine: Arthritis
Drugs that prevent the body from making excessive levels of thyroid hormone in people with hyperthyroidism. In some cases, hyperthyroidism returns after the patient stops using these drugs. More Information on Antithyroid Medications: Thyroid & Parathyroid
Also Known As: "Antiviral Drugs, Antiviral Medications"
A class of medications used to treat viral infections. They may act by destroying or weakening the virus. More Information on Antiviral Agents: Cold & Infections Medications
Also Known As: "Antiviral Medications, Antiviral Agents"
A class of medications used to treat viral infections. They may act by destroying or weakening the virus. More Information on Antiviral Drugs: Cold & Infections Medications
Also Known As: "Antiviral Agents, Antiviral Drugs"
A class of medications used to treat viral infections. They may act by destroying or weakening the virus. More Information on Antiviral Medications: Cold & Infections Medications
Also Known As: "Antiviral Medications, Antiviral Agents, Antiviral Drugs"
A class of medications used to treat viral infections. They may act by destroying or weakening the virus. More Information on Antivirals: Cold & Infections Medications
A class of medications used to treat viral infections. They may act by destroying or weakening the virus. They may treat viruses that increase the risk of cancer. More Information on Antivirals & Cancer: Cancer Drug & Medication
Drugs used to treat viral infections of the skin that work by interfering with a virus' ability to enter a host cell and replicate themselves. More Information on Antivirals & Skin Conditions: Skin Drugs & Medications
Surgery to remove the antrum, a portion of the stomach, usually to treat peptic ulcer disease. It reduces the amount of stomach acid. More Information on Antrectomy: Gastritis & Ulcer
A test in which a tube is passed down the throat, through the stomach and into the upper small intestine to measure contractions at rest and after a meal. It shows whether emptying of the stomach is delayed (gastroparesis). More Information on Antroduodenal Motility Study: Digestive Imaging Tests
"ANUP" is more commonly referred to as "Acute Necrotizing Ulcerative Periodontitis" in the medical community. Acute Necrotizing Ulcerative Periodontitis
A severe form of periodontitis that affects those who are immunocompromised (HIV/AIDS) or extremely malnourished. There is intense jaw pain and death of massive amounts of bone and gum tissue. More Information on Acute Necrotizing Ulcerative Periodontitis: Oral Infections
A rare form of cancer in which malignant cells are found in the anus (the canal below the intestines and rectum through which solid waste exits the body). Cancers of outer anal skin (perianal area) are skin cancers and not anal cancers. More Information on Anus Cancer: Gastrointestinal System Cancer
A complex combination of apprehension, worry and fear accompanied by physical responses such as a rapid heart rate, chest pain and shortness of breath without an identifiable cause. More Information on Anxiety: Anxiety Disorders
Disorders with debilitating, disruptive anxiety as a primary feature. These may include panic disorders, specific phobias, acute stress disorder, post-traumatic stress disorder and obsessive-compulsive disorder, among others. More Information on Anxiety Disorders: Anxiety Disorders
A nonprofit organization for the prevention, treatment and cure of anxiety disorders and the improvement of the quality of life of the people who suffer from them.
Children often have minor anxieties, such as those experienced when left alone or short-term fears, including fear of the dark, strangers, animals or storms. However, some children demonstrate greater levels of anxiety, which can be disabling. More Information on Anxiety in Children: Anxiety Disorders
"AOM" is more commonly referred to as "Acute Otitis Media" in the medical community. Acute Otitis Media
Also Known As: "Suppurative Otitis Media"
Inflammation of the middle ear (otitis media) with infection. Pus develops inside the inner ear, sometimes causing the eardrum to become red and bulge. More Information on Acute Otitis Media: Ear Conditions
"AOPO" is more commonly referred to as "Association for Organ Procurement Organizations" in the medical community. Association for Organ Procurement Organizations
Represents independent and hospital-based organ procurement organizations throughout the U.S. with a mission of maximizing the availability of organs for transplant and establishing standards for a high-quality and efficient donation process.
The aorta carries oxygen-rich blood from the heart to the body, dividing into smaller arteries. The thoracic aorta (including the ascending aorta, aortic arch and descending aorta) supplies the upper body. The abdominal aorta supplies the lower body. More Information on Aorta: Heart Basics
Also Known As: "Thoracic Aortic Aneurysm, Congenital Sinus of Valsalva Aneurysm"
A general condition characterized by the dilation (or enlargement) of part of the aorta. Typically, the widening of that area is considered to be an aneurysm when it is more than 1.5 times its normal size. More Information on Aortic Aneurysm: Aneurysm
"Aortic Arch Defect" is more commonly referred to as "Coarctation of the Aorta" in the medical community. Coarctation of the Aorta
Also Known As: "Arch Aorta, Aortic Coarctation"
A condition in which the aorta (the main artery carrying oxygen-rich blood from the heart to the rest of the body) is pinched, constricted or narrowed at some point along its length. More Information on Coarctation of the Aorta: Pediatric Heart
"Aortic Arch Syndrome" is more commonly referred to as "Takayasu Disease" in the medical community. Takayasu Disease
Also Known As: "Takayasu Arteritis, Occlusive Thromboaortopathy, Pulseness Disease"
An inflammatory disease of the aorta and its branches. Its cause is unknown. It is most common in Asian women between the ages of 15 and 30, but cases have been reported worldwide. More Information on Takayasu Disease: Heart Injuries & Infections
A congenital heart defect in which a baby is born with an aortic valve that is completely closed. This condition is usually associated with hypoplastic left heart syndrome and single ventricles. More Information on Aortic Atresia: Pediatric Heart
"Aortic Coarctation" is more commonly referred to as "Coarctation of the Aorta" in the medical community. Coarctation of the Aorta
Also Known As: "Arch Aorta, Aortic Arch Defect"
A condition in which the aorta (the main artery carrying oxygen-rich blood from the heart to the rest of the body) is pinched, constricted or narrowed at some point along its length. More Information on Coarctation of the Aorta: Pediatric Heart
Also Known As: "Type A Aortic Dissection, Dissecting Aortic Aneurism, Descending Aortic Dissection, Acute Aortic Dissection, Ascending Aortic Dissection, Type B Aortic Dissection, Torn Aorta"
A tear in the inner lining of the aorta that allows blood to leak into the space between the inner and outer layers. This could be fatal. The aorta may also widen or balloon, creating a dissecting aortic aneurysm. More Information on Aortic Dissection: Aneurysm
Also Known As: "Acute Aortic Regurgitation, Aortic Valve Regurgitation, Chronic Aortic Regurgitation, Aortic Valve Incompetence, Aortic Insufficiency, Aortic Valve Insufficiency"
A condition in which the aortic valve (located between the left ventricle and the aorta) does not close tightly. This allows blood to leak back into the left ventricle instead of out the aorta and to the rest of the body. More Information on Aortic Incompetence: Heart Valve
Also Known As: "Aortic Valve Insufficiency, Acute Aortic Regurgitation, Aortic Incompetence, Aortic Valve Regurgitation, Chronic Aortic Regurgitation, Aortic Valve Incompetence"
A condition in which the aortic valve (located between the left ventricle and the aorta) does not close tightly. This allows blood to leak back into the left ventricle instead of out the aorta and to the rest of the body. More Information on Aortic Insufficiency: Heart Valve
A condition in which the aortic valve (located between the left ventricle and the aorta) does not close tightly. This allows blood to leak back into the left ventricle instead of out the aorta and to the rest of the body. More Information on Aortic Regurgitation: Heart Valve
Also Known As: "Ruptured Aorta, Ruptured Abdominal Aortic Aneurysm"
The bursting of an aortic aneurysm (a widened area in part of the aorta). It can be caused by a birth defect, atherosclerosis, high blood pressure or syphilis. More Information on Aortic Rupture: Aneurysm
Also Known As: "Acquired Aortic Stenosis, Congenital Aortic Stenosis, Aortic Valve Disease, Aortostenosis"
A narrowing of the aortic valve, located between the left ventricle and the aorta. As a result, there is reduced blood flow from the heart to the aorta. More Information on Aortic Sclerosis: Heart Valve
"Aortic Sinus" is more commonly referred to as "Sinus of Valsalva" in the medical community. Sinus of Valsalva
A widening of the aorta or the pulmonary artery at the point where they meet the semilunar valves. This widening allows blood to leak back in the wrong direction, causing the semilunar valves to close.
Also Known As: "Acquired Aortic Stenosis, Congenital Aortic Stenosis, Aortic Sclerosis, Aortic Valve Disease, Aortostenosis"
A narrowing of the aortic valve, located between the left ventricle and the aorta. As a result, there is reduced blood flow from the heart to the aorta. More Information on Aortic Stenosis: Heart Valve
"Aortic Stent Graft" is more commonly referred to as "Stent Graft" in the medical community. Stent Graft
Also Known As: "Endovascular Grafts, Endoluminal Aortic Stent Grafting, EVG"
A method of treating an aortic aneurysm by detouring the flow of blood around the aneurysm instead of through it. Because self-expanding stent-grafts can also cover an aortic tear, they can be used in the treatment of aortic dissection. More Information on Stent Graft: Catheter Tests & Procedures
One of the heart's four valves. The aortic valve normally swings open to allow the smooth passage of blood from the left ventricle out the aorta, then closes. Blood should flow only in one direction and only at the right time. More Information on Aortic Valve: Heart Valve
Also Known As: "Acquired Aortic Stenosis, Congenital Aortic Stenosis, Aortostenosis, Aortic Sclerosis"
A narrowing of the aortic valve, located between the left ventricle and the aorta. As a result, there is reduced blood flow from the heart to the aorta. More Information on Aortic Valve Disease: Heart Valve
Also Known As: "Aortic Insufficiency, Aortic Valve Insufficiency, Acute Aortic Regurgitation, Aortic Incompetence, Aortic Valve Regurgitation, Chronic Aortic Regurgitation"
A condition in which the aortic valve (located between the left ventricle and the aorta) does not close tightly. This allows blood to leak back into the left ventricle instead of out the aorta and to the rest of the body. More Information on Aortic Valve Incompetence: Heart Valve
Also Known As: "Acute Aortic Regurgitation, Aortic Incompetence, Aortic Valve Regurgitation, Chronic Aortic Regurgitation, Aortic Valve Incompetence, Aortic Insufficiency"
A condition in which the aortic valve (located between the left ventricle and the aorta) does not close tightly. This allows blood to leak back into the left ventricle instead of out the aorta and to the rest of the body. More Information on Aortic Valve Insufficiency: Heart Valve
Also Known As: "Acute Aortic Regurgitation, Chronic Aortic Regurgitation, Aortic Valve Incompetence, Aortic Insufficiency, Aortic Valve Insufficiency, Aortic Incompetence"
A condition in which the aortic valve (located between the left ventricle and the aorta) does not close tightly. This allows blood to leak back into the left ventricle instead of out the aorta and to the rest of the body. More Information on Aortic Valve Regurgitation: Heart Valve
An angiogram of the aorta, the primary blood vessel that carries oxygen-rich blood from the heart to the rest of the body. The catheter-based diagnostic test uses a contrast medium and an x-ray to visualize the size, shape and location of the aorta. More Information on Aortogram: Catheter Tests & Procedures
Also Known As: "Acquired Aortic Stenosis, Congenital Aortic Stenosis, Aortic Sclerosis, Aortic Valve Disease"
A narrowing of the aortic valve, located between the left ventricle and the aorta. As a result, there is reduced blood flow from the heart to the aorta. More Information on Aortostenosis: Heart Valve
"AOSD" is more commonly referred to as "Adult Onset Still's Disease" in the medical community. Adult Onset Still's Disease
Also Known As: "Adult Onset Systemic Juvenile Rheumatoid Arthritis, Adult Onset Systemic JRA"
Adult onset of a system-wide form of rheumatoid arthritis usually (but rarely) found in children. Symptoms often involve high fever, rash and inflammation of organs (e.g., heart, lungs). It can be potentially life-threatening. More Information on Adult Onset Still's Disease: Arthritis
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