Ancient schwannoma of the infratemporal fossa.

This article describes a case of ancient schwannoma of the infratemporal fossa. Ancient schwannoma is a rare variant of the neurilemmoma, which clinical findings and radiographic features suggest is a slow-growing, benign tumour. Histopathologic features such as hypercellularity with nuclear atypia can make accurate diagnosis of this tumour difficult. The treatment of this tumour is complete resection, and the prognosis is good.