[Intracranial meningiomas]

The author excised an intracranial meningioma from 28 patients, 17 women and 11 men, between 7 and 78 years of age, from 1974 to 1992. The tumor was located in the olfactory groove in 4 patients, in the cerebral convexity in another 4, in the falx in 8 (3 in the frontal and 5 in the parietal region). In 6 patients, the meningioma was found in the inner one third and in 1 in the middle third of sphenoid; in 1, in the clivus, in 1 in the petrous bone; in 2 patients the tumor was located in the tubercle of the sella turcica and in another patient it was in the cerebello-pontine angle. Total resection of the meningioma was accomplished in 16 patients (57.1%) because the tumor was in an accessible area. The tumor recurred in one patient, who died 5 years post operatively. In 8 (28.5%) of 12 patients in whom subtotal resection was done, post operative radiation was used, and in 3 of them recurrence occurred in less than 5 years after completion of treatment and in one, in less than 10. In 3 of the remain 4 patients, in whom subtotal resection was done but were not followed by radiation therapy, recurrence also occurred before 5 years post surgery, and in 1 patient at the end of 5 years.