title: [A case of schwannoma in psoas muscle].
abstract: We report a case of schwannoma in psoas muscle, difficult to make a preoperative differential diagnosis from multilocular renal cyst in a 44-year-old woman. She complained of epigastric discomfort, and abdominal computerized tomography revealed a left multi-cystic renal tumor. Drip infusion pyelography showed the tumor displacing the left kidney superiorly, and pushing the left ureter medially. Magnetic resonance imaging demonstrated that the tumor structure was multilocular. At the operation, the tumor was observed in psoas muscle and was revealed as schwannoma in microscopic findings.
authors.affiliation: Department of Urology, Iwaki Kyoritsu General Hospital.
authors.forename: Jun
authors.initials: J
authors.lastname: Takemoto
authors.forename: Takashi
authors.initials: T
authors.lastname: Yamato
authors.forename: Ken-ichi
authors.initials: K
authors.lastname: Suzuki
authors.forename: Mutsuo
authors.initials: M
authors.lastname: Takeuchi
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D052177:Kidney Diseases, Cystic; D008279:Magnetic Resonance Imaging; D019042:Muscle Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D009442:Neurilemmoma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D007690:Polycystic Kidney Diseases; D016658:Psoas Muscles; D014057:Tomography, X-Ray Computed; D014567:Urography