title: [Sarcomatoid carcinoma of the urinary bladder: a case report].
abstract: A 63-year-old man was admitted to our hospital for a bladder tumor. Drip infusion pyelography, computerized tomography (CT) and magnetic resonance imaging suggested the presence of a large invasive tumor in the right wall of the bladder. Histopathological findings by transurethral resection of bladder tumor showed the presence of sarcomatous and carcinomatous elements. Immunohistochemical examination showed that the sarcomatous component did not stain for S-100 protein or for smooth muscle actin but it stained for epithelial markers. Under the diagnosis of sarcomatoid carcinoma, we performed a total cystectomy and ileal conduit without chemotherapy or radiation. A follow-up CT taken at four months postoperatively showed no evidence of recurrence.
authors.affiliation: Department of Urology, Osaka Kosei-Nenkin Hospital.
authors.forename: Daizo
authors.initials: D
authors.lastname: Oka
authors.forename: Yasuteru
authors.initials: Y
authors.lastname: Noda
authors.forename: Shingo
authors.initials: S
authors.lastname: Takada
authors.forename: Nobumasa
authors.initials: N
authors.lastname: Fujimoto
authors.forename: Takuo
authors.initials: T
authors.lastname: Koide
authors.forename: Masaru
authors.initials: M
authors.lastname: Yamazaki
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Kobayashi
mesh_terms: D002296:Carcinosarcoma / Q000175:diagnosis* / Q000601:surgery; D015653:Cystectomy; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D001749:Urinary Bladder Neoplasms / Q000175:diagnosis* / Q000601:surgery; D014547:Urinary Diversion