[Hemangioblastoma in posterior cranial fossa. Report of 56 cases].

The diagnosis of hemangioblastoma in the posterior cranial fossa was confirmed in 56 patients operatively and pathologically. The tumors were cystic in 44 patients and solid in 12; 87.5% of the tumors occurred in the cerebellar hemisphere and 7.1% in the vermis. The main symptoms and signs were increased ICP and cerebellar incoordination. 64 surgical operations had been performed in the 56 patients. Seven patients died and 8 (14%) had recurrence postoperatively. The effect of surgical intervention in 40 patients with cystic hemangioblastoma was satisfactory. Among 5 patients with solid tumor, 2 recovered completely and 3 still had partial neurological disability.