| MBD | Marchiafava-Bignami disease; Mental Deterioration Battery; methylene blue dye; minimal brain damage;... |
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| MCD | magnetic circular dichroism; mast-cell degranulation; mean cell diameter; mean of consecutive differ... |
| MDV | Marek disease virus; mean dye [bolus] velocity; mucosal disease virus |
| MJD | Machado-Joseph disease; Mseleni joint disease |
| MRD | maximum rate of depolarization; measles-rindenpest-distemper [virus group]; medical records departme... |
| brisket disease | A disease of cattle, characterised by edematous swelling of the brisket and the tissues of the neck; the body cavities also contain large quantities of clear straw-coloured transudate; this disease results from right heart failure as a consequence of increased pulmonary resistance, which is in some way associated with movement of animals to high altitudes. Synonym: mountain sickness. (05 Mar 2000) |
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| Brissaud's disease | <clinical sign> An involuntary compulsive, repetitive, stereotyped movement, resembling a purposeful movement because it is coordinated and involves muscles in their normal synergistic relationships, tics usually involve the face and shoulders. (18 Nov 1997) |
| broad beta disease | Hyperlipoproteinaemia characterised by increased plasma levels of LDL, beta-lipoproteins, pre-beta-lipoproteins, cholesterol, phospholipids, and triglycerides; hypertriglyceridemia induced by a high carbohydrate diet, and glucose tolerance is abnormal; frequent eruptive xanthomas and atheromatosis, particularly coronary artery disease; biochemical defect lies in apolipoproteins; there are many varieties. Synonym: carbohydrate-induced hyperlipaemia, dysbetalipoproteinaemia, familial hyperbetalipoproteinaemia and hyperprebetalipoproteinaemia, familial hypercholesterolaemia with hyperlipaemia. (05 Mar 2000) |
| Brocq's disease | A variety of parapsoriasis. (05 Mar 2000) |
| Brodie's disease | Chronic hypertrophic synovitis of the knee. Synonym: Brodie's disease. (05 Mar 2000) |
| bronzed disease | A genetic disease in which the body takes in too much iron from food, this causes excess iron to be deposited in the liver and heart and other organs, eventually leading to organ failure and death. This illness is called bronze diabetes because the kidneys often fail, leading to symptoms similar to those found with diabetes mellitus, and because the deposition of iron into the skin makes the person look like he or she has an all-over tan. It used to be believed that this disease was rare and mainly affected people of Caucasian descent, butin recent years scientists have realised it is more common and affects a wide range of ethnic groups. Some believe that this genetic defect actually helps people (especially women) survive in areas where malnutrition is widespread and iron is scarce in food. Regular venesection may help people suffering from this disease. (09 Oct 1997) |
| Brooke's disease | Trichoepithelioma. Synonym: keratosis follicularis contagiosa. (05 Mar 2000) |
| Bruck's disease | A disease marked by osteogenesis imperfecta, ankylosis of the joints, and muscular atrophy. (05 Mar 2000) |
| Brushfield-Wyatt disease | A familial disorder characterised by unilateral nevus, contralateral hemiplegia, hemianopia, cerebral angioma, and mental retardation; possibly a variant of Sturge-Weber syndrome. Synonym: nevoid amentia. (05 Mar 2000) |
| Bruton's disease | <disease, immunology> An inherited disease due to agammaglobulinaemia caused by a deficiency in B lymphocyte function. Inheritance: sex-linked recessive. (18 Nov 1997) |
| Buerger's disease | <cardiology> A progressive occlusive disease of the arteries and veins. The cause of Buerger's disease is unknown. Smoking appears to accelerate the occlusive effects of Buerger's. (27 Sep 1997) |
| bulging eye disease | Infection of herbivores and rarely man with larvae of flies of the genus Gedoelstia, causing ophthalmomyiasis in humans. Synonym: bulging eye disease. (05 Mar 2000) |
| Burger-Grutz disease | An obsolete term for idiopathic hyperlipaemia. (05 Mar 2000) |
| Bury's disease | A chronic symmetrical eruption of flattened nodules, of a pinkish or purplish colour, occurring in plaques on the buttocks and extensors of wrists, elbows, and knees, becoming fibrotic and finally scarring; early lesions show necrotizing vasculitis with fibrinoid or lipid deposits in vessel walls. Synonym: Bury's disease. (05 Mar 2000) |
| Buschke's disease | A diffuse, non-pitting induration of the skin of unknown aetiology that occurs most commonly in association with diabetes mellitus, predominantly in females. It typically begins on the face or head and spreads to other areas of the body, sometimes involving noncutaneous tissues. Often it is preceded by any of various infections, notably staphylococcal infections. The condition resolves spontaneously, usually within two years of onset. (12 Dec 1998) |