Diagnostic imaging of choroid plexus disease

Disorders of the choroid plexus, a central nervous system structure, are ra re, but can pose diagnostic difficulties. The purpose of this review is to illustrate the computed tomography and magnetic resonance imaging findings of a wide spectrum of lesions that affect the choroid plexus. The areas cov ered include (1) neoplasms (papilloma, leukaemia, meningioma, lymphoma and metastases); (2) infections (bacterial, fungal and viral); (3) cysts; (4) h aemorrhage; (5) congenital abnormalities (Sturge-Weber syndrome, Klippel-Tr enaunay-Weber syndrome and vascular malformations); and (6) non-infectious inflammatory disorders (xanthogranulomas, inflammatory pseudotumour, neuros arcoidosis, rheumatoid nodule and villous hypertrophy), Few of the patterns of choroid plexus involvement are specific for a particular pathological p rocess. (C) 2000 The Royal College of Radiologists.