Insular lesions are known to be very difficult to locate. They are often misdiagnosed as frontal lesions, temporal lesions, frontal-temporal lesions, and thalamic lesions.1 Moreover, because of the complex anatomy surrounding the insular lobe, severe postoperative complications are considered. Removal of the temporal lobe plus a subtotal tumor resection is carried out even biopsy or non-surgical treatment is advocated.