Neurilemmoma, also known as schwannoma, is a benign tumor originating from the neural sheath of the peripheral, sympathetic and cranial nerve. Though it occurs most commonly in head and neck area, the neurilemmoma of presacral area is rare. Here, simultaneously, a neurilemmoma, arising in the presacral area and teratoma, arising in the Lt. ovary of a 66-year-old woman, who was presented with fecal incontinence, is described. Actually, We misdiagnosed a presacral neurilemmoma as presacral teratoma. Surgical excision was performed by transabdominal laparoscopy. The patient is no evidence of fecal incontinence, and does well daily, without evidence of the disease. Because it is relatively easy to misdiagnose a presacral neurilemmoma as teratoma, fibroma, ovarian carcinoma, etc., it is critical to perform differential diagnosis of pelvic masses, using radiological and histological methods.