[A case of posttraumatic intracranial meningioma].

Several etiologic factors have been proposed in the development of meningiomas, including trauma, radiation, oncogenic viruses, chromosomal abnormalities, and hormonal factors. We presented a 71-year-old female patient who had undergone an operation for a head trauma 27 years ago. Brain computed tomography scans showed a contrast-enhancing intracranial mass lesion, 5 x 4 x 4 cm in size, leading to diffuse edema in the left frontal region. At surgery, a tumoral mass was detected below the former craniotomy flap, with dural invasion, and a total excision was performed. Two silver clips were also noted in the previous surgical site. Histopathologic diagnosis was made as a transitional meningioma. No recurrences were detected within a year follow-up period.