GROWTH, HEMORRHAGE, AND REGRESSION OF MULTIPLE INTRACEREBRAL VASOFORMATIVE TUMORS - REPORT OF AN UNUSUAL CASE

A RARE CASE of multiple hemorrhagic vascular tumors of the cerebrum an d cerebellum is reported. Computed tomographic scans in a 16-year-old girl revealed multifocal brain lesions with ''jewel ring''-like areas of contrast enhancement. An old hematoma cavity was found inside the s urgical specimen. Histologically, it was a vascular tumor composed of anastomosing vascular channels with proliferating endothelial cells an d hemorrhages at different stages. Upon further histopathological stud y, this lesion could not be classified as any known vascular tumor ent ity, although it resembled some vascular tumors, such as cavernous hem angioma and hemangioendothelioma. The patient received steroid and alp ha interferon treatment. The lesions initially increased in number onc e, then resolved 10 months after onset. The neuroradiological and hist opathological features in the present case were characteristic, and th e clinical course was unusual.