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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.
Topic Index
- + DTaP
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- DTaP
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Also Known As: "Diphtheria and Tetanus Toxoids and Acellular Pertussis"
An immunization shot given to infants and children that contains vaccines for diphtheria, tetanus and pertussis.
More Information on DTaP: Pediatric Health Basics
- + DTR
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- DTR
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Also Known As: "Registered Diet Technician, Dietetic Technician Registered, Registered Dietetic Technician"
A diet professional who holds an Associate degree, completes a minimum of 450 supervised hours and passes a registration test. They must accrue 50 hours of approved continuing professional education every five years.
More Information on DTR: Nutrition Basics
- + DTs
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- DTs
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"DTs" is more commonly referred to as "Delirium Tremens" in the medical community.
Delirium Tremens
A type of delirium associated with rapid withdrawal from alcohol use. It is characterized by confusion, hallucinations, seizures and shaking.
More Information on Delirium Tremens: Alcohol & Substance Abuse
- + Dual Chamber ICD
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- Dual Chamber ICD
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"Dual Chamber ICD" is more commonly referred to as "Implantable Defibrillator (ICD)" in the medical community.
Implantable Defibrillator (ICD)
Also Known As: "Implantable Cardioverter Defibrillator, Implantable Cardioverter, Automatic Defibrillator Implantation, Automatic Implantable Cardioverter Defibrillator, Single Chamber ICD, ICD, AICD"
Implanted in the chest, an ICD is a battery-powered device that monitors and, if necessary, corrects an abnormal heart rhythm by sending electrical charges to the heart. ICD stands for Implantable Cardioverter Defibrillator.
More Information on Implantable Defibrillator (ICD): Arrhythmia
- + Dual Diagnosis
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- Dual Diagnosis
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Two or more conditions occurring in the same patient at the same time, particularly a substance abuse problem alongside another mental disorder.
More Information on Dual Diagnosis: Emotional Health Basics
- + Dual Energy X Ray Absorptiometry
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- Dual Energy X Ray Absorptiometry
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Also Known As: "DEXA"
An imaging tool used to test bone density and strength.
More Information on Dual Energy X Ray Absorptiometry: Imaging Tests
- + Dual Energy X Ray Absorptiometry Scan
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- Dual Energy X Ray Absorptiometry Scan
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"Dual Energy X Ray Absorptiometry Scan" is more commonly referred to as "Bone Density Test" in the medical community.
Bone Density Test
Also Known As: "Bone Densitometry, Radiographic Absorptiometry, DEXA Scan, Absorptiometry, Dual Photon Densitometry"
A method of estimating bone density by the amount of x-ray radiation absorbed by bones and tissues. It is used to diagnosis osteoporosis and related conditions.
More Information on Bone Density Test: Bone Health
- + Dual Photon Densitometry
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- Dual Photon Densitometry
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"Dual Photon Densitometry" is more commonly referred to as "Bone Density Test" in the medical community.
Bone Density Test
Also Known As: "Bone Densitometry, Radiographic Absorptiometry, DEXA Scan, Absorptiometry, Dual Energy X Ray Absorptiometry Scan"
A method of estimating bone density by the amount of x-ray radiation absorbed by bones and tissues. It is used to diagnosis osteoporosis and related conditions.
More Information on Bone Density Test: Bone Health
- + Dubin Johnson Syndrome
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- Dubin Johnson Syndrome
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Also Known As: "Chronic Idiopathic Jaundice"
An inherited chronic jaundice with no known cause.
More Information on Dubin Johnson Syndrome: Liver, Pancreas & Biliary
- + Dubowitz Syndrome
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- Dubowitz Syndrome
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Also Known As: "Dwarfism Eczema Peculiar Facies Syndrome"
A type of multiple congenital anomaly/mental retardation (MCA/MR) syndrome that is marked by short stature, sparse hair and other abnormalities. These may include one or more heart conditions, such as septal defects or more complicated heart defects.
More Information on Dubowitz Syndrome: Pediatric Heart
- + Duckworms
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- Duckworms
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"Duckworms" is more commonly referred to as "Swimmer Itch" in the medical community.
Swimmer Itch
Also Known As: "Clam Digger Itch, Cercarial Dermatitis, Rice Paddy Itch"
Itchy, patchy, red pinpoint skin rash that affects parts of the body that have been in water. Itching may begin within 48 hours and last up to a week before ceasing. It is usually caused by trematode parasites of aquatic/migrating birds.
More Information on Swimmer Itch: Dermatitis, Eczema & Hives
- + Ductal Carcinoma
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- Ductal Carcinoma
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Also Known As: "Ductal Carcinoma in Situ, Infiltrating Ductal Carcinoma, DCIS, Comedo Carcinoma, Intraductal Carcinoma, Invasive Ductal Carcinoma"
A type of breast cancer in which malignant cells develop in the milk passages (ducts). It may be contained in that area (in situ) or have spread to surrounding tissue (invasive).
More Information on Ductal Carcinoma: Breast Cancer
- + Ductal Carcinoma in Situ
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- Ductal Carcinoma in Situ
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Also Known As: "Infiltrating Ductal Carcinoma, DCIS, Comedo Carcinoma, Intraductal Carcinoma, Invasive Ductal Carcinoma"
A type of breast cancer in which malignant cells develop in the milk passages (ducts). It may be contained in that area (in situ) or have spread to surrounding tissue (invasive).
More Information on Ductal Carcinoma in Situ: Breast Cancer
- + Ductal Hyperplasia
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- Ductal Hyperplasia
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"Ductal Hyperplasia" is more commonly referred to as "Benign Proliferative Breast Disease" in the medical community.
Benign Proliferative Breast Disease
Also Known As: "Benign Breast Hyperplasia, BPBD, Lobular Hyperplasia, Breast Hyperplasia, Papillomas"
A group of breast-related conditions that, while noncancerous (benign), increase the risk of developing breast cancer. These include ductal hyperplasia, lobular hyperplasia and papillomas.
More Information on Benign Proliferative Breast Disease: Breast Health
- + Ductal Lavage
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- Ductal Lavage
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Also Known As: "Breast Duct Lavage"
A procedure in which a catheter (thin, flexible tube) is inserted through the nipple and into the breast ducts to introduce a saline solution. When the saline is removed through the catheter, it takes ductal cells with it for later lab examination.
More Information on Ductal Lavage: Breast Cancer
- + Ductus Arteriosus
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- Ductus Arteriosus
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A prenatal blood vessel that connects the aorta and pulmonary arteries. It should close at birth, as the baby begins to breathe.
More Information on Ductus Arteriosus: Pediatric Heart
- + Duhring's Disease
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- Duhring's Disease
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"Duhring's Disease" is more commonly referred to as "Dermatitis Herpetiformis" in the medical community.
Dermatitis Herpetiformis
Also Known As: "DH"
An intensely itchy skin eruption that is often associated with celiac disease. Symptoms include clusters of red, itchy bumps that cause intense burning, stinging and itching around the elbows, knees, scalp, buttocks and back.
More Information on Dermatitis Herpetiformis: Dermatitis, Eczema & Hives
- + Dukes' Classification
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- Dukes' Classification
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A staging system for colorectal cancer. The four stages are: A (confined to lining of colon), B (penetrated colon wall), C (spread to lymph nodes) and D (spread to other organs).
More Information on Dukes' Classification: Gastrointestinal System Cancer
- + Duloxetine
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- Duloxetine
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"Duloxetine" is more commonly referred to as "Venlafaxine" in the medical community.
Venlafaxine
Also Known As: "Nefazodone"
A type of medication belonging to the drug class of SNRIs.
More Information on Venlafaxine: Psychiatric Medications
- + Dumping Syndrome
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- Dumping Syndrome
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Also Known As: "Rapid Gastric Emptying, Postgastrectomy Syndrome, Postgastrectomy Dumping Syndrome"
A condition in which food or liquid passes too quickly from the stomach into the small intestines causing symptoms such as cramps, nausea and diarrhea. It is common in patients after stomach surgery.
More Information on Dumping Syndrome: Bariatric Surgery
- + Duodenal Switch
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- Duodenal Switch
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Also Known As: "DS"
Surgery to induce weight loss in severely obese people that involves reducing the size of the stomach and rearranging the small intestines so food is not fully absorbed.
More Information on Duodenal Switch: Bariatric Surgery
- + Duodenal Ulcer
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- Duodenal Ulcer
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A noncancerous ulcer in the lining of the duodenum, part of the small intestine.
More Information on Duodenal Ulcer: Gastritis & Ulcer
- + Duodenitis
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- Duodenitis
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Inflammation or irritation of the duodenum, part of the small intestine.
More Information on Duodenitis: Inflammatory Bowel (Colitis)
- + Duodenum
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- Duodenum
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The first part of the small intestine, connected to the stomach.
More Information on Duodenum: Digestive Health Basics
- + Duplex Ultrasound
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- Duplex Ultrasound
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"Duplex Ultrasound" is more commonly referred to as "Doppler Ultrasound" in the medical community.
Doppler Ultrasound
Also Known As: "Color Doppler, Doppler Echocardiogram"
A noninvasive test that uses ultrasound (high-frequency sound waves) to evaluate blood flow in the heart, the blood vessels of the arms and legs, and the carotid arteries in the neck.
More Information on Doppler Ultrasound: Heart Imaging & Rhythm Tests
- + Dupuytren's Contracture
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- Dupuytren's Contracture
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Contracture of the fascia (band of fibrous connective tissue) of the palm that usually causes the ring and little fingers to bend into the palm so they cannot be extended. It typically occurs in men after middle age and may have a genetic link.
More Information on Dupuytren's Contracture: Arm & Leg Pain
- + Dust & Dust Mites
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- Dust & Dust Mites
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Also Known As: "Dust Allergies, Dust Mite Allergies"
Most dust allergies are caused by mites, microscopic insects that inhabit household dust and are present in carpet, stuffed animals, upholstered furniture and bedding.
More Information on Dust & Dust Mites: Indoor Allergies
- + Dust Allergies
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- Dust Allergies
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Also Known As: "Dust Mite Allergies"
Most dust allergies are caused by mites, microscopic insects that inhabit household dust and are present in carpet, stuffed animals, upholstered furniture and bedding.
More Information on Dust Allergies: Indoor Allergies
- + Dust Mite Allergies
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- Dust Mite Allergies
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Also Known As: "Dust Allergies"
Most dust allergies are caused by mites, microscopic insects that inhabit household dust and are present in carpet, stuffed animals, upholstered furniture and bedding.
More Information on Dust Mite Allergies: Indoor Allergies
- + Dust Mites
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- Dust Mites
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Microscopic insects that inhabit household dust and are present in carpet, stuffed animals, upholstered furniture and bedding. They are common allergy triggers.
More Information on Dust Mites: Indoor Allergies
- + DVs
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- DVs
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"DVs" is more commonly referred to as "Daily Values" in the medical community.
Daily Values
Also Known As: "Daily Reference Values, RDIs, DRVs, Reference Daily Intakes"
Nutrient reference values developed by the Food and Drug Administration to evaluate and plan the diets of individuals and populations. They appear on food labels to make their use easier for the general public.
More Information on Daily Values: Nutrition Basics
- + DVT
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- DVT
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"DVT" is more commonly referred to as "Deep Vein Thrombosis" in the medical community.
Deep Vein Thrombosis
Also Known As: "Economy Class Syndrome"
The formation of an obstructing blood clot in the deep veins embedded in the muscles, usually in the lower leg and sometimes in the lower abdomen or groin. A type of thrombophlebitis, DVT may cause no symptoms and can result in permanent vein damage.
More Information on Deep Vein Thrombosis: Vascular Disease
- + Dwarf & Rat Tapeworm Infection
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- Dwarf & Rat Tapeworm Infection
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"Dwarf & Rat Tapeworm Infection" is more commonly referred to as "Fish Tapeworm Infection" in the medical community.
Fish Tapeworm Infection
Also Known As: "Dipylidium Infection, Diphyllobothriasis, Diphyllobothrium Latum Infection, Fish (Broad) Tapeworm Infection, Diphyllobothrium Infection"
Tapeworm infection that can result from eating raw or undercooked fish. Fish tapeworms can grow to 33 feet (10 meters) in length. They are the largest tapeworms that can infect humans.
More Information on Fish Tapeworm Infection: Gastroenteritis & Food Illness
- + Dwarf Tapeworm
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- Dwarf Tapeworm
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Also Known As: "Hymenolepis Nana Infection, Hymenolepiasis"
The most common type of human tapeworm infection in the United States. The dwarf tapeworm is shorter than other types, and infection can result from ingestion of tapeworm eggs or larvae on contaminated food or via hand-to-mouth transmission.
More Information on Dwarf Tapeworm: Infectious Disease Basics
- + Dwarf Tapeworm Infection
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- Dwarf Tapeworm Infection
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Also Known As: "Dwarf Tapeworm, Hymenolepis Nana Infection, Hymenolepiasis"
The most common type of human tapeworm infection in the United States. The dwarf tapeworm is shorter than other types, and infection can result from ingestion of tapeworm eggs or larvae on contaminated food or via hand-to-mouth transmission.
More Information on Dwarf Tapeworm Infection: Infectious Disease Basics
- + Dwarfism
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- Dwarfism
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Also Known As: "Disproportionate Short Stature, Nanism"
Condition that usually results in an adult height of 4 feet, 10 inches or shorter. More than 200 types have been identified, many related to genetic or hormonal disorders.
More Information on Dwarfism: Birth & Genetic Disorders
- + Dwarfism Eczema Peculiar Facies Syndrome
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- Dwarfism Eczema Peculiar Facies Syndrome
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A type of multiple congenital anomaly/mental retardation (MCA/MR) syndrome that is marked by short stature, sparse hair and other abnormalities. These may include one or more heart conditions, such as septal defects or more complicated heart defects.
More Information on Dwarfism Eczema Peculiar Facies Syndrome: Pediatric Heart
- + Dwarfism Polydactyly Dysplastic Nails Syndrome
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- Dwarfism Polydactyly Dysplastic Nails Syndrome
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"Dwarfism Polydactyly Dysplastic Nails Syndrome" is more commonly referred to as "Chondroectodermal Dysplasia" in the medical community.
Chondroectodermal Dysplasia
Also Known As: "Six Fingered Dwarfism, EvC Syndrome, Mesoectodermal Dysplasia, CED, Chondrodysplasia Ectodermica, Polydactyly Chondrodystrophy Syndrome, Ellis-van Creveld Syndrome"
A type of multiple congenital anomaly/mental retardation (MCA/MR) syndrome that is marked by short limbs, extra fingers, and other bone abnormalities. About half of patients also have one or more congenital heart defects.
More Information on Chondroectodermal Dysplasia: Birth & Genetic Disorders
- + Dwarfism-Pericarditis Syndrome
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- Dwarfism-Pericarditis Syndrome
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"Dwarfism-Pericarditis Syndrome" is more commonly referred to as "Mulibrey Nanism Syndrome" in the medical community.
Mulibrey Nanism Syndrome
Also Known As: "Constrictive Pericarditis Dwarfism Syndrome, Nanism-Constrictive Pericarditis Syndrome, Mulibrey Dwarfism, Pericardial Constriction Growth Failure Syndrome, Perheentupa Syndrome, Growth Failure-Pericardial Constriction Syndrome"
A condition marked by slow or halted growth that includes abnormalities of the muscles, brain, eyes and liver. It also includes restrictive pericarditis (inflammation of the membrane around the heart), heart failure and other heart-related problems.
More Information on Mulibrey Nanism Syndrome: Heart Injuries & Infections
- + Dwell Time
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- Dwell Time
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The length of time in peritoneal dialysis that the dialysis solution stays in the abdomen. Typically there are several continuous sessions every day, each with a dwell time of four to six hours or overnight for up to eight hours.
More Information on Dwell Time: Kidney (Renal)
- + Dyazide
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- Dyazide
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A brand of diuretics, medications that cause the kidneys to flush water and other substances (e.g., sodium) from the body through urine.
More Information on Dyazide: Heart Drug & Medication
- + Dynamic Cardiomyoplasty
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- Dynamic Cardiomyoplasty
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"Dynamic Cardiomyoplasty" is more commonly referred to as "Cardiomyoplasty" in the medical community.
Cardiomyoplasty
An experimental procedure in which muscles from the back or abdomen are placed around a weak heart. When stimulated by a device like a pacemaker, the muscles may help the heart to pump more strongly.
More Information on Cardiomyoplasty: Heart Failure
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- + Dysarthria
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- Dysarthria
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A condition in which the muscles that control speech have weakened or are unable to move, causing speech that is garbled or otherwise difficult to understand. The condition may be a result of brain damage or mental illness (e.g., dementia).
- + Dysautonomia
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- Dysautonomia
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Also Known As: "Riley Day Syndrome, Autonomic Dysfunction, Familial Dysautonomia"
A disorder of autonomic nervous system (ANS) function. It can be local or generalized. It also can be acute and reversible or chronic and progressive. There is no cure, and severe cases can be fatal.
More Information on Dysautonomia: Brain & Nerve Basics
- + Dyschezia
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- Dyschezia
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Also Known As: "Anal Sphincter Dysfunction, Disordered Evacuation, Pelvic Floor Dysfunction"
Difficult or painful bowel movements.
More Information on Dyschezia: Abdominal Pain
- + Dysencephalia Splanchnocytica
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- Dysencephalia Splanchnocytica
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"Dysencephalia Splanchnocytica" is more commonly referred to as "Meckel Gruber Syndrome" in the medical community.
Meckel Gruber Syndrome
Also Known As: "Gruber Syndrome"
A genetic disorder present from birth that is fatal due to kidney failure. Along with the primary birth defects associated with this condition, patients may have one or more heart defects (e.g., septal defects, patent ductus arteriosus).
More Information on Meckel Gruber Syndrome: Pediatric Heart
- + Dysentery
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- Dysentery
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A general term for certain infections characterized by severe, bloody diarrhea, abdominal pain, fever and dehydration. It may be caused by bacteria or amoebas.
More Information on Dysentery: Gastroenteritis & Food Illness
- + Dysesthesia
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- Dysesthesia
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A condition in which a sense, particularly touch, is distorted and may cause an ordinary sensation to seem painful or unpleasant. It is characterized by burning, itching, prickling, pain or numbness.
More Information on Dysesthesia: Pain Basics
- + Dysfunction
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- Dysfunction
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Abnormal or impaired functioning, especially of a bodily system or organ.
- + Dysfunctional Family
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- Dysfunctional Family
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A family situation with regular misbehavior, conflict or abuse, which is perceived by the children in the family as normal.
More Information on Dysfunctional Family: Relationships
- + Dysfunctional Uterine Bleeding
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- Dysfunctional Uterine Bleeding
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Also Known As: "Abnormal Uterine Bleeding, Abnormal Vaginal Bleeding"
Irregular bleeding from the uterus. Types include menorrhagia (heavy menstrual bleeding), metrorrhagia (bleeding between menstrual periods), polymenorrhea (too frequent menstruation) and postmenopausal bleeding.
More Information on Dysfunctional Uterine Bleeding: ObGyn Signs & Symptoms
- + Dysgeusia
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- Dysgeusia
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Also Known As: "Taste Disorder"
A distortion or loss of the sense of taste. It may be used synonymously with one type (parageusia) that involves a bad taste in the mouth.
More Information on Dysgeusia: Mouth & Tongue Disorders
- + Dysgraphia
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- Dysgraphia
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A neurological disorder that causes a person's writing to be distorted or incorrect. Other symptoms include wrong or odd spelling, and production of words that are not correct (e.g., using "boy" for "child.").
More Information on Dysgraphia: Attention & Learning Disorders
- + Dyshidrotic Eczema
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- Dyshidrotic Eczema
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A condition in which small blisters that cause intense itching develop on the hands and feet. In some cases, it appears to be seasonal. Scratching can lead to skin thickening and secondary infections.
More Information on Dyshidrotic Eczema: Dermatitis, Eczema & Hives
- + Dyskinesia
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- Dyskinesia
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Impairment of voluntary movement.
More Information on Dyskinesia: Neuro Signs & Symptoms
- + Dyslexia
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- Dyslexia
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Also Known As: "Word Blindness, Global Dyslexia"
A learning disorder that affects the patient's ability to read, write and count. Despite normal ability to see and recognize letters, patients have difficulty spelling and writing words.
More Information on Dyslexia: Attention & Learning Disorders
- + Dyslipidemia
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- Dyslipidemia
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A disorder of fat-like substances (lipids) in the blood such as cholesterol, triglycerides and fatty acids. It is a general term for any lipid disorder. Specific terms are usually used in diagnoses, such as hypercholesterolemia (high cholesterol).
More Information on Dyslipidemia: Cholesterol
- + Dysmenorrhea
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- Dysmenorrhea
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"Dysmenorrhea" is more commonly referred to as "Menstrual Cramps" in the medical community.
Menstrual Cramps
A type of pelvic pain that occurs only during the menstrual cycle.
More Information on Menstrual Cramps: Menstruation
- + Dysmetabolic Syndrome
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- Dysmetabolic Syndrome
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"Dysmetabolic Syndrome" is more commonly referred to as "Metabolic Syndrome" in the medical community.
Metabolic Syndrome
Also Known As: "CHAOS, Metabolic Syndrome X, Reavens Syndrome, Insulin Resistance Syndrome"
The speed at which energy is used by the body. Metabolic rates vary considerably among individuals; therefore, total calorie (energy) intake should be adjusted on a case-by-case basis to minimize the risk of becoming overweight or obese.
More Information on Metabolic Syndrome: Diabetes & Endocrine Risks
- + Dyspareunia
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- Dyspareunia
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"Dyspareunia" is more commonly referred to as "Sexual Pain" in the medical community.
Sexual Pain
Pain that occurs during sexual intercourse, which may be due to infection, lack of estrogen (such as during menopause), hypersensitivity or other causes.
More Information on Sexual Pain: Sexual Health
- + Dyspepsia
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- Dyspepsia
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"Dyspepsia" is more commonly referred to as "Indigestion" in the medical community.
Indigestion
Also Known As: "Functional Dyspepsia"
Improper digestion, causing symptoms such as heartburn, nausea, bloating and gas.
More Information on Indigestion: GERD & Heartburn
- + Dysphagia
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- Dysphagia
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Also Known As: "Difficulty Swallowing, Swallowing Disorder"
Pain or difficulty swallowing. It can be caused by a variety of conditions, which may be minor or serious. Patients should report this symptom immediately to their physician.
More Information on Dysphagia: Oral Signs & Symptoms
- + Dysphagia & Neurological Disorders
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- Dysphagia & Neurological Disorders
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Difficulty swallowing or eating, with or without pain. It can occur with food or liquid. While usually a sign of problems with the esophagus, it is also seen with neurological disorders such as ALS, multiple sclerosis and Parkinson's disease.
More Information on Dysphagia & Neurological Disorders: Neuro Signs & Symptoms
- + Dysphoria
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- Dysphoria
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A negative, unpleasant emotional state with abnormal depression, unrest or discontent without an apparent cause.
- + Dysplasia
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- Dysplasia
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Abnormal growth or development of body tissues or cells.
More Information on Dysplasia: Cancer Basics
- + Dysplastic Moles
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- Dysplastic Moles
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"Dysplastic Moles" is more commonly referred to as "Atypical Moles" in the medical community.
Atypical Moles
Also Known As: "Atypical Nevi, Clarks Nevi, Dysplastic Nevi, Atypical Nevus"
Moles that are larger than common moles, with borders that are irregular and poorly defined and that may vary in color. Can be precancerous and should be examined by a physician.
More Information on Atypical Moles: Skin Growths
- + Dysplastic Nevi
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- Dysplastic Nevi
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"Dysplastic Nevi" is more commonly referred to as "Atypical Moles" in the medical community.
Atypical Moles
Also Known As: "Atypical Nevi, Clarks Nevi, Atypical Nevus, Dysplastic Moles"
Moles that are larger than common moles, with borders that are irregular and poorly defined and that may vary in color. Can be precancerous and should be examined by a physician.
More Information on Atypical Moles: Skin Growths
- + Dyspnea
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- Dyspnea
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"Dyspnea" is more commonly referred to as "Shortness of Breath" in the medical community.
Shortness of Breath
Also Known As: "Breathlessness, Paroxysmal Nocturnal Dyspnea"
The feeling one is not getting enough air, which may leave a person gasping. Asthma is one cause, which may be triggered by an allergic reaction.
More Information on Shortness of Breath: Breathing & Lung
- + Dyspnea & the Heart
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- Dyspnea & the Heart
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"Dyspnea & the Heart" is more commonly referred to as "Breathing Problems & the Heart" in the medical community.
Breathing Problems & the Heart
The feeling that one is not getting enough air. It may leave the person gasping. A person whose heart or lungs are weak may become short of breath because these organs cannot meet the body’s oxygen needs.
More Information on Breathing Problems & the Heart: Heart Signs & Symptoms
- + Dyspraxia
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- Dyspraxia
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Also Known As: "Developmental Dyspraxia"
A disorder that impairs the ability to plan and carry out sensory and motor tasks, making patients appear "out of sync" with their environment. Symptoms include balance, coordination, vision and emotional problems.
More Information on Dyspraxia: Neuro Signs & Symptoms
- + Dysregulation
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- Dysregulation
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An inability to properly regulate something, such as neurotransmitters in the brain and resulting mood fluctuations.
- + Dysrhythmia
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- Dysrhythmia
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"Dysrhythmia" is more commonly referred to as "Arrhythmia" in the medical community.
Arrhythmia
Also Known As: "Irregular Rhythm, Irregular Heartbeat, Cardiac Arrhythmia, Rhythm Disorder, Rhythm Disturbance, Irregular Heart Rhythm"
An abnormal heartbeat resulting from any change, deviation or malfunction in the heart's electrical system. An arrhythmia may be abnormally fast (tachycardia) or abnormally slow (bradycardia), and some can be fatal (e.g., ventricular fibrillation).
More Information on Arrhythmia: Arrhythmia
- + Dyssomnias
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- Dyssomnias
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Sleep disorders with problems in the amount, quality or timing of sleep.
More Information on Dyssomnias: Sleep
- + Dyssynergia Cerebellaris Myoclonica
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- Dyssynergia Cerebellaris Myoclonica
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Also Known As: "Dentatorubral Atrophy, Dyssynergia Cerebellaris Progressiva, Primary Dentatum Atrophy, Dentate Cerebellar Ataxia, Ramsay Hunt Syndrome I"
A group of rare, degenerative, neurological disorders characterized by epilepsy, cognitive impairment, myoclonus and progressive ataxia. Symptoms include seizures, tremor and reduced muscle coordination.
More Information on Dyssynergia Cerebellaris Myoclonica: Movement Disorders
- + Dyssynergia Cerebellaris Progressiva
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- Dyssynergia Cerebellaris Progressiva
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Also Known As: "Dentatorubral Atrophy, Primary Dentatum Atrophy, Dentate Cerebellar Ataxia, Ramsay Hunt Syndrome I"
A group of rare, degenerative, neurological disorders characterized by epilepsy, cognitive impairment, myoclonus and progressive ataxia. Symptoms include seizures, tremor and reduced muscle coordination.
More Information on Dyssynergia Cerebellaris Progressiva: Movement Disorders
- + Dysthymia
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- Dysthymia
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Also Known As: "Depressive Neurosis, Dysthymic Episode, Chronic Depression, Depressive Personality Disorder, Dysthymic Disorder"
A chronic form of mild depression, lasting at least two years, characterized by a perpetually gloomy mood.
More Information on Dysthymia: Depression & Bipolar
- + Dysthymic Disorder
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- Dysthymic Disorder
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Also Known As: "Depressive Neurosis, Chronic Depression, Depressive Personality Disorder, Dysthymic Episode"
A chronic form of mild depression, lasting at least two years, characterized by a perpetually gloomy mood.
More Information on Dysthymic Disorder: Depression & Bipolar
- + Dysthymic Episode
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- Dysthymic Episode
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Also Known As: "Depressive Neurosis, Chronic Depression, Depressive Personality Disorder, Dysthymic Disorder"
A chronic form of mild depression, lasting at least two years, characterized by a perpetually gloomy mood.
More Information on Dysthymic Episode: Depression & Bipolar
- + Dystonia Musculorum Deformans
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- Dystonia Musculorum Deformans
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"Dystonia Musculorum Deformans" is more commonly referred to as "Torsion Dystonia" in the medical community.
Torsion Dystonia
A rare type of general dystonia (sustained muscle contractions leading to twisting movements) that affects all or most of the body. It usually begins in childhood may be inherited.
More Information on Torsion Dystonia: Movement Disorders
- + Dystonias
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- Dystonias
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A group of movement disorders involving sustained muscle contractions. This results in repetitive twisting movements and abnormal posture. Sometimes painful, the contractions may involve a single muscle or muscle group.
More Information on Dystonias: Movement Disorders
- + Dystrophic Epidermolysis Bullosa
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- Dystrophic Epidermolysis Bullosa
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A form of the genetic blistering disease epidermolysis bullosa. Potentially the most severe form. Blisters may appear due to very slight or even unnoticed pressure. Scarring does occur and mucous membranes are affected.
More Information on Dystrophic Epidermolysis Bullosa: Skin & Hair Basics
- + Dystrophic Epidermolysis Bullosa Research Association of America
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- Dystrophic Epidermolysis Bullosa Research Association of America
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Also Known As: "DebRA"
An organization for patients suffering from epidermolysis bullosa, a group of inherited skin disorders in which blisters appear after mild trauma.
- + Dystrophin
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- Dystrophin
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