Intracranial plasma-cell granuloma: a case report.

A 57-year-old woman presented with right-sided ptosis and diplopia. CT scans showed a tumor in the right cerebellopontine angle attached to the tentorium. Subtotal resection was conducted prior to local irradiation (20 Gy). Histological examination of the resected specimen indicated a diagnosis of plasma-cell granuloma. Diffuse thickening of the tentorium and falx were seen on follow-up MR imaging six years after the operation. Only eleven cases of intracranial plasma-cell granuloma have been reported in the literature. This paper reports a new case with unusual recurrence on neuroimagings.