| pseudotumour | 1. <oncology> An enlargement of nonneoplastic character which clinically resembles a true neoplasm so closely as to often be mistaken for such. 2. A condition, commonly associated with obesity in young females, of cerebral oedema with narrowed small ventricles but with increased intracranial pressure and frequently papilledema. Synonym: pseudoneoplasm. (05 Mar 2000) |
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| pseudotumour cerebri | <radiology> Idiopathic, increased cerebrospinal fluid production, increased intracranial pressure, papilledema, CT: slit-like ventricles, treatment: steroids (12 Dec 1998) |
| inflammatory pseudotumour | A tumour-like mass in the lungs or other sites, composed of fibrous or granulation tissue infiltrated by inflammatory cells. (05 Mar 2000) |
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| orbital pseudotumour | <radiology> Non-specific inflammation of orbit, sudden, painful proptosis, Treatment: steroids, middle age, M=F, unilateral (90%), EOM enlargement: one muscle, inferior rectus most common, lacrimal gland enlargement, optic nerve enlargement and irregularity, scleral enhancement (50%), streaky intraconal fat, orbital mass (intra- or extraconal, discrete or irregular) (12 Dec 1998) |