A PELVIC RETROPERITONEAL SCHWANNOMA PRESENTING AS AN ADNEXAL MASS

Solitary nerve sheath tumors such as benign schwannomas arising in the pelvic retroperitoneum are infrequently reported. We report a case of a benign retroperitoneal pelvic schwannoma that presented with pelvic pain and an adnexal mass. Complete surgical excision was achieved onl y after transection of the S1 nerve root on the left side. The adjacen t vascular and urinary channels sustained no injuries and the patient had minimal neurologic deficit. (C) 1994 Academic Press, Inc.