Meningioma associated with intratumoral abscess formation--case report.

A rare case of meningioma associated with intratumoral abscess formation occurred in a 64-year-old female presenting with septic meningitis and a right frontal mass lesion after a gynecological operation under spinal anesthesia. The mass lesion was totally removed and revealed as an incidental meningioma with an intratumoral abscess. Hematogenous infection of Bacteroides oralis was thought to be the cause of the intratumoral abscess formation.