title: Benign retroperitoneal schwannoma.
abstract: A rare case of benign retroperitoneal schwannoma in a 76-year-old man is reported. Ultrasound and computerized tomography disclosed two cystic retroperitoneal tumors sized 12 cm and 7 cm. The larger tumor was located anterior to psoas muscle and the smaller one was within the muscle. The larger tumor was excised via laparotomy. After 3.5 years follow-up the intramuscular tumor has remained unchanged and the patient has no symptoms.
authors.affiliation: Department of Surgery, Maria City Hospital, Helsinki, Finland.
authors.forename: V
authors.initials: V
authors.lastname: Perhoniemi
authors.forename: I
authors.initials: I
authors.lastname: Anttinen
authors.forename: F
authors.initials: F
authors.lastname: Kadri
authors.forename: I
authors.initials: I
authors.lastname: Saario
mesh_terms: D000368:Aged; D003951:Diagnostic Errors; D006801:Humans; D008297:Male; D009442:Neurilemmoma / Q000175:diagnosis*; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis*; D014057:Tomography, X-Ray Computed