[CT scans in the diagnosis of cerebellar hemangioblastomas. Analysis of 21 cases].

Computed tomography (CT) scans in 21 patients with pathological verified cerebellar hemangioblastoma were analysed. There were 14 cases of cystic nodular pattern, 4 cases of nodular pattern and 3 cases with the pattern of cyst only in this series. The characteristic features of hemangioblastomas on the CT scans usually consisted of large circumscribed cystic low density lesions with a small enhanced nodule in each of them. On surgical operations 20 cases in this series were classified to be of cystic-nodular pattern. In order to show the cystic-nodular pattern in a better manner on the CT the thin slice CT scan 5 should be recommended in addition to the use of an appropriately increases amount of intravenous contrast medium when hemangioblastoma of the cerebellum would be suspected.