| primary fissure of cerebellum | The deepest fissure of the cerebellum; demarcates the division of anterior and posterior lobes of the cerebellum; second to appear embryologically. Synonym: fissura prima cerebelli. (05 Mar 2000) |
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| primary gain | Interpersonal, social, or financial advantages from the conversion of emotional stress directly into demonstrably organic illnesses (e.g., hysterical blindness or paralysis). Compare: secondary gain. (05 Mar 2000) |
| primary generalised epilepsy | Epilepsy without evidence of focal or multifocal central nervous system disease. Seizures are generalised from onset, both by EEG and clinical criteria. Often a pure genetic form of epilepsy. See: generalised tonic-clonic seizure. (05 Mar 2000) |
| primary gout | Acute episodes of crystal-induced synovitis due to abnormality of purine metabolism; lower than normal urinary excretion of urate leading to hyperuricaemia and acute episodes of joint inflammation. Synonym: primary gout. Interval gout, an asymptomatic phase between acute attacks of gout. Latent gout, hyperuricaemia without symptoms of gout. Often used synonymously with interval gout. Synonym: masked gout. (05 Mar 2000) |
| primary haemorrhage | Haemorrhage immediately after an injury or operation, as distinguished from intermediate or secondary haemorrhage. (05 Mar 2000) |
| primary health care | Care which provides integrated, accessible health care services by clinicians who are accountable for addressing a large majority of personal health care needs, developing a sustained partnership with patients, and practicing in the context of family and community. (jama 1995;273(3):192) (12 Dec 1998) |
| primary herpetic stomatitis | First infection of oral tissues with herpes simplex virus; characterised by gingival inflammation, vesicles, and ulcers. (05 Mar 2000) |
| primary HIV infection | <infectious disease> The flu-like syndrome that oc immediately after a person contracts HIV. This mini infection precedes seroconversion and is characterised fever, sore throat, headache, skin rash and swollen glands. (06 Mar 1998) |
| primary homonym | <zoology> Each of two or more identical species names, which, at the time of original publication, were proposed in combination with the same generic name i.e. The species were named for different, though homonymous genera. See: Homonym. (09 Jan 1998) |
| primary hydrocephalus | Hydrocephalus due to a developmental defect of the brain. Synonym: primary hydrocephalus. (05 Mar 2000) |
| primary hyperoxaluria and oxalosis | A metabolic disorder characterised by calcium oxalate nephrocalcinosis and nephrolithiasis, extrarenal oxalosis, and increased urinary output of oxalic and glycolic acids; usually evident clinically in the first decade of life, with progressive renal failure and uraemia; autosomal recessive inheritance. Type I is due to an alteration in alanine:glyoxylate aminotransferase; type II is due to an alteration in d-glycerate dehydrogenase. (05 Mar 2000) |
| primary hyperparathyroidism | Hyperparathyroidism due to neoplasms or idiopathic hyperplasia of the parathyroid glands. (05 Mar 2000) |
| primary hypertension | Hypertension without known cause. Synonym: idiopathic hypertension, primary hypertension. (05 Mar 2000) |
| primary hyperthyroidism | Hyperthyroidism due to a disorder originating within the thyroid gland, in contrast to one of pituitary origin; may be due to generalised overactivity of the gland, to a localised hyperactive nodule, or to circulating antibody, which stimulates the gland (long-acting thyroid stimulator). (05 Mar 2000) |
| primary hypogammaglobulinaemia | Hypogammaglobulinaemia due to a primary immunodeficiency of immunoglobulin-forming cells (B-lymphocytes). (05 Mar 2000) |