Fig. 3. Partial resection of a tumor with persistent seizures. The meningioma partially occluded the left superior sagittal sinus and showed adhesion to the motor cortex (A and B). The tumor was intentionally left at the adhesive portion of sagittal sinus and motor cortex (C). After the operation, Cyberknife radiosurgery was done with 210 cGy, but the tumor slightly increased in size (D), and the seizures remained for the following 3 years.