Lymphoproliferative lesion of the hypoglossal nerve: case report.

A rare case of a lymphoproliferative lesion in the hypoglossal nerve is reported. The patient, a 52-year-old woman, had symptoms identical with those of hypoglossal neurinoma. Computed tomography and magnetic resonance imaging revealed a lesion at the left cerebellomedullary angle. The tumor was removed, and histopathological studies revealed that the tumor consisted predominantly of lymphocytes.