,OPERATIVE PROCEDURE:,  After satisfactory general endotracheal tube anesthesia was administered, the patient positioned on the operating table in supine position with the right frontal area shaved and the head was prepped and draped in a routine manner. 
,OPERATIVE PROCEDURE : , After satisfactory general endotracheal tube anesthesia was administered , the patient positioned on the operating table in supine position with the right frontal area shaved and the head was prepped and draped in a routine manner .