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DISEASES INDEX [R]

Common Diseases List (R): Find medical advices, information and definitions about common diseases, illnesses, disorders, syndroms and deficincies. What are the signs, symptoms, causes, diagnosis, management, and treatments information. Click the disease link to view details.

Rabbit fever is an infectious disease that attacks the skin, eyes & lungs. It is also referred to as deerfly fever or tularemia....
Rabies is a viral zoonotic neuro-invasive infection that often causes an inflammation of the brain (a condition known as acute encephalitis). Rabies is from the Latin word "rabies" meaning "rage, fury, or madness". Rabies can be fatal when affecting non-vaccinated humans, especially after neurologic...
Rabson-Mendenhall syndrome is characterized by severe resistance to insulin, abnormal growth & development, acanthosis nigricans, and, in some cases, a hypertrophic pineal gland. In this rare insulin receptor disorder, the patient's body suffers from a disability to use insulin which is needed to co...
Radiation exposure is a sickness brought about by long-term exposure to low levels of radiation. This sickness often affects cell division. Radiation exposure is used to treat cancer, as the ionization process destroys cancer cells....
Radiation sickness the damage to the body due to exposure to a very large dose of radiation usually received over a short period of time. The condition is also referred to as acute radiation sickness, acute radiation syndrome, or radiation poisoning....
Radiophobia is a type of phobia characterized by an irrational fear of ionizing radiation. Most commonly, the term is associated with an extreme fear of X-rays. In addition, radiophobia is also used in the context of a neurological disorder, in which case the condition is used to reference a specifi...
Radon Poisoning: Radon is a radioactive gas that will damage cells if left exposed for a lone period of time. It cannot be seen, felt nor smelled & enters the body through respiration & causes the body damage. This condition is the 2nd leading cause of lung cancer....
Raine syndrome is a rare disease in newborn infants characterized by intracranial calcification, or an abnormal increase in bone density, which can prove ultimately fatal. Raine syndrome is also alternatively called osteosclerotic bone dysplasia....
Ramsay Hunt paralysis syndrome comprises three distinct neurological conditions described by James Ramsay Hunt in early 19th century - Ramsay Hunt syndrome type I, Ramsay Hunt syndrome type II & Ramsay Hunt syndrome type III....
Rapadilino syndrome is a rare genetic disorder, inherited via autosomal recessive trait, characterized by short stature, radial & patellar aplasia, cleft or arched palate, limb malformation, radial ray defects & dislocated joints....
Rapid gastric emptying definition: It is also referred to as the Dumping syndrome. This condition is a collection of symptoms which is most likely to happen if an individual had undergone a surgery to remove most if not all of the part of the stomach or a bypass surgery. The condition occurs when the contents of the stomach that has ...
Rasmussen's encephalitis definition: Also known as Chronic Focal Encephalitis (CFE), Rasmussen's encephalitis is a rare, progressive neurological disorder affecting a single cerebral hemisphere & usually occurring in children under the age of ten....
Rat-bite fever in an infectious disease where in a bite from a rat transfers a bacteria or fungi infection. The symptoms of the fever will depend on the organism which caused the infection....
Raynaud's disease phenomenon definition: Raynaud's phenomenon, or Raynaud's disease, is a vasospastic disorder characterized by a discoloration of the fingers, toes & occasionally other extremities. Named after 19th century French physician Maurice Raynaud, Raynaud's disease occurs more commonly in women than in men. When Raynaud's disease...
Razor bumps are also referred to as shaving bumps. This condition usually affects men who have very curly hairs. It occurs when the tip of the curly hair grows back towards the hair follicle. It is also known as ingrown hairs. The ingrown hair causes a skin reaction & results to razor bumps. The con...
Reactive arthritis (acronym: ReA) is a type of seronegative spondyloarthropathy & an autoimmune disorder that results from an infection in another part of the body. It is called "reactive" because it is caused by another infection; & "arthritis" because it presents with symptoms very similar to a ra...
Reactive attachment disorder definition: This disorder usually affects children which is a severe, uncommon disorder of attachment. This is distinguished by markedly disturbed & developmentally unsuitable ways of associating socially in perspective. This can condition can either be in the form of constant failure to begin or respond to soc...
Reactive hypoglycemia is characterized by recurrent episodes of symptomatic hypoglycemia that occur within 2-4 hours after ingesting a high carbohydrate meal. The condition is believed to be a consequence of excessive insulin release triggered by glucose overload that persist even after the glucose ...
Rebound headaches are cycles of headaches. They are also referred to as medication overuse headaches....
Rectal abscess pertains to an abscess buildup in the rectal area, often due to bacterial infections that produce a localized accumulation of pus. The abscess is typically located either at the opening of the rectum or further up the rectum. Rectal abscess is also used alternately with the phrase ?an...
Rectal cancer pertains to carcinoma affecting the last 6 inches of colon or large intestine, which is the lower part of the digestive system. Colon cancer & rectal cancer are sometimes collectively called colorectal cancers....
Rectal inflammation is a condition in which the lining of the rectum is inflamed. It is also referred to as proctitis....
Rectal itching is an itching around the anus. It is also called pruritis ani or anal itching....
Rectal neoplasm is a form of colorectal cancer affecting the rectum. Because it has no early symptoms, the disease is frequently under-diagnosed. When symptoms do occur, both the symptoms & the diagnostic tests required to confirm the diagnosis are considered embarrassing by most patients. However, ...
Rectal Prolapse is a medical disorder where the walls of the rectum jut out of the anus & can be seen outside the body. There are 3 main kinds of rectal prolapse: full-thickness (the entire rectum protrudes), mucosal prolapse (only the rectal mucosa protrudes) & internal intussusceptions (rectum col...
Solitary rectal ulcer syndrome is a condition in which a single ulcer typically occurs in the rectum that may cause rectal bleeding with straining or when having bowel movements....
Rectocele is a condition in which the rectum's front wall bulges into the vagina....
Rectosigmoid neoplasm is a tumor originating from the sigmoid colon or the upper rectal area. A rectosigmoid neoplasm may be benign or malignant....
Rectum cancer is a kind of cancer wherein malignant cells take over the rectal tissues. In this condition the cancer cells that invade the rectal tissues cause abnormal growths in the blood vessels causing rectal obstruction. These cells can also spread in the different organs of the body....
Red eye also called subconjunctival hemorrhage, is a harmless condition in which the white of the eye appears red due to a broken tiny blood vessel....
Red measles, commonly known as German measles, is a short-lived contagious disease presented by red spots & inflammation of the lymph glands located behind the ears. The disease usually lasts from 14 to 21 days....
Reflex sympathetic dystrophy syndrome is a form of a chronic neurological condition commonly known as Complex Regional Pain Syndrome (CRPS). Reflex sympathetic dystrophy is Type I of CRPS & does not demonstrate any distinct nerve lesions. (Conversely, Causalgia or type II CRPS presents with evident ...
Reflux esophagitis is a symptom of gastroesophageal reflux disease (GERD) characterized by inflammatory changes in the esophageal lining caused by reflux of gastric acid into the esophagus. Esophagitis (also known as Oesophagitis) is a general term for inflammation of the esophagus. When esophagitis...
Refractive errors are conditions in which the light passing through eye often loses focus. This is a cause for vision acuity. This condition is due to genetic or environmental factors & the effects can either lead to blurry vision, astigmatism, myopia & hyperopia. The condition can be diagnosed by v...
Refsum disease is a group of genetic disorders called leukodystrophies where the white matter of the brain is damaged, affecting motor movements. Refsum disease usually begins in childhood or adolescence & progresses through time....
Also known as Crohn's disease, regional enteritis is a chronic, episodic, inflammatory bowel disease (IBD), believed to be autoimmune in origin. Regional enteritis may affect any part of the gastrointestinal tract, from the mouth to the anus. Consequently, symptoms vary among afflicted patients....
Reiters arthritis is a form of inflammatory arthritis that develops complications in the urinary tract, bowels & genital system. This kind of arthritis has two kinds: one that is sexually transmitted & another that is caused by salmonella....
Reiter's syndrome is a medical condition characterized by three seemingly unrelated symptoms: redness of the eyes, arthritis & urinary tract problems. It is a form of seronegative spondyloarthropathy, causing inflammation throughout the body, particularly in parts of the spine & at joints connecting...
Relapsing fever is a type of fever that keeps recurring. It is often joined by headaches, muscle pain, joint aches & nausea. There are two kinds: tick-borne (TBRF) & louse-borne relapsing fever (LBRF)....
Relapsing fever is an infection transferred by a tick or a louse which is characterized by repeated episodes of fever. Other names for relapsing fever are tick-borne relapsing fever & louse-borne relapsing fever....
Relapsing Polychondritis is a rare & chronic condition where the cartilage of different tissues become inflamed. Part of the body affect may include the ears, the nose, windpipe, spine & joints. Because the heat, eyes & blood vessels have similar make-ups, these can also be affected....
Renal agenesis is an inborn condition in which an infant is born without one or both kidneys. The absence of one kidney at birth is called unilateral renal agenesis; while the absence of both kidneys is called bilateral renal agenesis....
Renal artery stenosis is a condition characterized by the narrowing of the renal artery, often as a result of atherosclerosis or fibromuscular dysplasia. The narrowing of the renal artery obstructs the blood flow to the target kidney, which leads to hypertension & atrophy of the affected kidney, whi...
Renal Calculi, more commonly known as kidney stones, refer to crystal aggregations or solid secretions of dissolved minerals in urine. Stones or calculi often form inside the kidneys or bladder. The presence of calculi in kidneys is known as nephrolithiasis; whereas the presence of calculi in the ur...
Renal cancer means cancer of the kidney; renal being the Latin word for kidney. The most common form of renal cancer is renal cell carcinoma, which starts in the renal tubule....
Renal carbuncle is the medical term for abscess of the kidney, or a localized collection of pus in the kidney....
Renal cell carcinoma (acronym: RCC) is the most common type of renal or kidney cancer. It starts in the renal tubule & may spread to other parts of the body if undiagnosed early....
Renal colic is a painful urinary system condition commonly due to kidney stones. Colic is a misnomer since the pain in this type of disorder is chronic, not intermittent. There are 2 varieties: dull & acute....
Renal dysplasia mesomelia radiohumeral fusion, also called Ulbright Hodes, is an extremely rare syndrome characterized by abnormalities in kidney development & various defects in the arm bone....
Renal glycosuria is also referred to as renal glucosuria. It is a rare genetic syndrome characterized by the excretion of simple sugar glucose in the urine despite low or normal blood glucose levels. When the kidneys function normally, glucose is eliminated in the urine only when glucose in the bloo...
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