Abstract
A 54-year-old man with a feeling of disorder and tumor mass in the left inguinal region as the chief complaint was seen at the Department of Surgery of our hospital and then referred to our department. Neurological deciduous symptoms were not found. An elastic, hard, egg-sized tumor mass, with a flat margin was palpable. On CT and MRI for the inguinal region, a schwannoma originating from the obturator nerve was suspected. After informing the patient that he may suffer from sensory disturbance or movement disturbance after surgery, we removed the tumor mass. Rapid pathological examination during the operation revealed the tumor to be a benign schwannoma. To our knowledge, there are no reported cases of the schwannoma of the obturator nerve in the inguinal region. We report a case of benign schwannoma of the obturator nerve in the inguinal region.