title: Cavernous angioma in the fourth ventricle.
abstract: A cavernous angioma in the fourth ventricle of a 47-year-old man is reported. Because of a progressive clinical course and a ring-like enhancement on computed tomography, a brain tumor, rather than a vascular disease, was suspected. The lesion was removed totally and verified histologically as a cavernous angioma.
mesh_terms: D001932:Brain Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D002533:Cerebral Angiography; D002552:Cerebral Ventricles; D006392:Hemangioma, Cavernous / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed