Recurrences in meningioma after surgery.

123 cases of meningioma operated upon between 1975 and 1984 were reviewed. There were 13 cases of symptomatic tumour recurrence and 15 cases of tumour progression. Both, recurrence and progression of the tumour were seen twice as often in males. They were not related to any particular age group or site of origin. Recurrence was more common in the angioblastic type of meningioma. In the majority, progression of the tumour was seen within two years of the initial operation, while recurrence of the tumour was distributed evenly over time.