| MCD | magnetic circular dichroism; mast-cell degranulation; mean cell diameter; mean of consecutive differ... |
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| 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... |
| MVD | Doctor of Veterinary Medicine; microvascular decompression; mitral valve disease; multivessel corona... |
| Bang's disease | A disease in cattle caused by Brucella abortus; in pregnant cows, characterised by abortion late in pregnancy, followed by retained placenta and metritis; in bulls, orchitis and epididymitis may occur; the organism may localise in the udder and thus appear in milk from infected cows. Synonym: Bang's disease. (05 Mar 2000) |
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| Bannister's disease | A vascular reaction involving the deep dermis or subcutaneous or submucal tissues, representing localised oedema caused by dilatation and increased permeability of the capillaries and characterised by development of giant wheals. (18 Nov 1997) |
| Banti's disease | <syndrome> Chronic congestive splenomegaly that occurs primarily in children as a sequel to hypertension in the portal or splenic veins, usually as a result of thrombosis of the veins; anaemia, splenomegaly, and irregular episodes of gastrointestinal bleeding are usually observed, with ascites, jaundice, leukopenia, and thrombocytopenia developing in various conbinations. Synonym: Banti's disease, splenic anaemia. (05 Mar 2000) |
| Barclay-Baron disease | Dysphagia caused by food becoming lodged above the epiglottis. Synonym: Barclay-Baron disease. (05 Mar 2000) |
| Barlow's disease | infantile scurvy |
| Barraquer's disease | A condition characterised by a complete loss of the subcutaneous fat of the upper part of the torso, the arms, neck, and face, sometimes with an increase of fat in the tissues about and below the pelvis. Synonym: Barraquer's disease, lipodystrophia progessiva superior, partial lipoatrophy, Simons' disease. (05 Mar 2000) |
| bartter's disease | Hypertrophy and hyperplasia of the juxtaglomerular cells, producing hypokalaemic alkalosis and hyperaldosteronism, characterised by absence of hypertension in the presence of markedly increased plasma renin concentrations, and by insensitivity to the pressor effects of angiotensin. It usually affects children, is perhaps hereditary, and may be associated with other anomalies, such as mental retardation and short stature. It is also called juxtaglomerular cell aplasia. (12 Dec 1998) |
| Basedow's disease | <endocrinology> A common cause of hyperthyroidism thought to be caused by an underlying autoimmune mechanism. (27 Sep 1997) |
| basilar interstitial lung disease | <radiology> B bronchiectasis, A asbestosis, D drugs / DIP, L lymphangitic metastasis / LAM, A aspiration, S sarcoidosis, S scleroderma (12 Dec 1998) |
| batten disease | <disease> This congenital disorder strikes between the ages of 5 and 10, causing the afflicted child to suddenly go blind. The child begins to suffer fromseizures and mental deterioration, afflicted individuals typically diebefore the age of 20. The disease is caused by the accumulation of toxicproteins in nerve cells, the root of the disorder is a mutation of a geneon chromosome 16. (09 Oct 1997) |
| Batten-Mayou disease | Cerebral sphingolipidosis, late infantile and juvenile types. (05 Mar 2000) |
| Bayle's disease | <neurology> Slight or incomplete paralysis. Origin: Gr. = relaxation (18 Nov 1997) |
| Bazin's disease | A type of panniculitis characterised histologically by the presence of granulomas, vasculitis, and necrosis. It is traditionally considered to be the tuberculous counterpart of nodular vasculitis, but is now known to occur without tuberculous precedent. It is seen most commonly in adolescent and menopausal women, is initiated or exacerbated by cold weather, and typically presents as one or more recurrent erythrocyanotic nodules or plaques on the calves. The nodules may progress to form indurations, ulcerations, and scars. (12 Dec 1998) |
| Bechterew's disease | Arthritis and osteitis deformans involving the spinal column; marked by nodular deposits at the edges of the intervertebral disks with ossification of the ligaments and bony ankylosis of the intervertebral articulations, it results in a rounded kyphosis with rigidity. Synonym: Bechterew's disease, poker back, Strumpell's disease. (05 Mar 2000) |
| Becker's disease | An obscure South African cardiomyopathy leading to rapidly fatal congestive heart failure and idiopathic mural endomyocardial disease. (05 Mar 2000) |