Meningioangiomatosis with Variable Imaging Feature: Rare Cause of Drug Refractory Epilepsy.

Meningioangiomatosis is a rare entity, commonly affecting leptomeninges and the cerebral cortex. It presents in the second decade of life with drug-resistant epilepsy. Meningioangiomatosis lacks a typical computed tomography or magnetic resonance imaging appearance, making the presurgical diagnosis a challenge. Diagnosis often depends on recognizing gyriform cortical patterns with or without calcification. This report presents two biopsy-proven cases of meningioangiomatosis with entirely different imaging features. Postsurgical excision carries a favorable prognosis.