Primary meningeal T-cell lymphoma at the clivus mimicking a meningioma.

Background: Most primary lymphomas of the central nervous system (CNS) are of B-cell origin and are found intra-axially, with a few reported cases of skull base tumors involving the upper clivus or sellar region or both. In this case, a tumor resembling a clivus meningioma without osseous involvement was surgically removed and turned out to be a primary T-cell lymphoma.

Case Report: A 60-year-old woman presented with slight right-sided abducens nerve palsy.