We have reported the case of a young man who had the uncommon coexistence of two relatively common intracranial tumors--a pituitary adenoma and a temporal lobe glioma. The pituitary adenoma invaded nerve bundles in the left cavernous sinus, but did not extend into the left temporal lobe, where an anatomically separate oligoastrocytoma was diagnosed at autopsy. Preoperative magnetic resonance imaging may assist in the diagnosis of this and similar uncommon conditions.