| PCD | pacer-cardioverter-defibrillator; papillary collecting duct; paraneoplastic cerebellar degeneration;... |
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| PCK | phosphoenolpyruvate carboxykinase; polycystic kidney |
| PCKD | polycystic kidney disease |
| PCOD | polycystic ovarian disease |
| PKD | polycystic kidney disease; proliferative kidney disease |
| baby bottle syndrome | Rampant caries of the primary dentition associated with the habitual use, after age 1, of a baby bottle as an aid for sleeping. Synonym: baby bottle syndrome. (05 Mar 2000) |
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| baby, foetal alcohol syndrome | <syndrome> Alcohol is capable of causing birth defects. FAS (foetal alcohol syndrome) always involves brain damage. And impaired growth. FAS also always involves head and face abnormalities. No amount of alcohol has been proven safe during pregnancy. Women who are or may become pregnant are advised to avoid alcohol. (12 Dec 1998) |
| Balint's syndrome | <syndrome> An entity characterised by optic ataxia and simultanagnosia. This difficulty in applying the visual system to a visual task is usually due to damage to the superior temporal-occipital areas in both hemispheres. (05 Mar 2000) |
| Bamberger-Marie syndrome | hypertrophic pulmonary osteoarthropathy |
| Bannwarth's syndrome | <syndrome> Neurologic manifestations of Lyme disease, also called chronic lymphocytic meningitis and tick-borne meningopolyneuritis. (05 Mar 2000) |
| Banti's syndrome | <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) |
| Bardet-Biedl syndrome | <syndrome> Mental retardation, pigmentary retinopathy, polydactyly, obesity, and hypogenitalism; recessive inheritance. See: Laurence-Moon-Biedl syndrome. (05 Mar 2000) |
| bare lymphocyte syndrome | <syndrome> Absence of HLA antigens on peripheral mononuclear cells, which may result in immunodeficiency. (05 Mar 2000) |
| Barlow's syndrome | <syndrome> Also referred to as mitral valve prolapse, systolic click-murmur syndrome, floppy-valve syndrome and billowing mitral leaflet syndrome. A common, but highly variable (most individuals are asymptomatic), clinical syndrome that has been described in up to 7% of all females in the 14 to 30 age group. There is also an increased familial incidence suggesting an autosomal dominant form of inheritance. (27 Sep 1997) |
| Barlow syndrome | <syndrome> Late apical systolic murmur or (so-called "mid-late") systolic click, or both, due to massive billowing of the anterior and/or posterior (mural) mitral valvular leaflet into the left atrial cavity (also, floppy valve syndrome); electrocardiographically, ST-T changes in a posteroinferior distribution resembling those of myocardial ischemia often coexist for unknown reasons; rhythm disturbances may coexist with this syndrome without demonstrable pathogenetic relationship. (05 Mar 2000) |
| Barrett's syndrome | <syndrome> Chronic peptic ulceration of the lower oesophagus, which is lined by columnar epithelium, resembling the mucosa of the gastric cardia, acquired as a result of long-standing chronic oesophagitis; oesophageal stricture with reflux, and adenocarcinoma, also have been reported. Synonym: Barrett's oesophagus. (05 Mar 2000) |
| Bart's syndrome | <syndrome> A form of epidermolysis bullosa with blistering of the extremities and intertriginous areas, erosions of the mouth, and deformed nails; probably autosomal dominant; there is often spontaneous improvement with no residual scarring. (05 Mar 2000) |
| Bartter's syndrome | <syndrome> A clinical syndrome characterised by enlargement of certain kidney cells, alkalosis, hypokalaemia and increased production of the hormone aldosterone. Common in children and may be seen in dwarfism. (27 Sep 1997) |
| basal cell nevus syndrome | <syndrome> An inherited group of defects which involve abnormalities of the skin, eyes, nervous system, endocrine, glands and bones. The condition is characterised by an unusual facial appearance and a predisposition for skin cancer. (27 Sep 1997) |
| Basan's syndrome | <syndrome> Ectodermal dysplasia with hypotrichosis, hypohidrosis, defective teeth, and unusual dermatoglyphics. (05 Mar 2000) |