title: [Inflammatory myofibroblastic tumor of the bladder: a case report].
abstract: A 15-year-old girl presented to a clinic with an asymptomatic macrohematuria. Cystoscopy revealed a bladder tumor. The next day she was admitted to our hospital because of preshock status with macrohematuria. Abdominal computed tomography (CT) revealed a solid tumor in the left anterior to lateral wall. Urinary cytology was negative. She received a transfusion and transurethral resection of bladder tumor as an emergent operation. Histopathological examination revealed inflammatory myofibroblastic tumor. Anaplastic lymphoma kinase immunohistopathological studies revealed cytoplasmic staining of the myofibroblasts. To our knowledge, this is the 35th reported case of inflammatory myofibroblastic tumor of the bladder in Japan. She has been followed up for 13 months without any evidence of local recurrence.
authors.affiliation: The Department of Urology, Osaka University Graduate School of Medicine.
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Kinoshita
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Takao
authors.forename: Akira
authors.initials: A
authors.lastname: Nagahara
authors.forename: Yasutomo
authors.initials: Y
authors.lastname: Nakai
authors.forename: Masashi
authors.initials: M
authors.lastname: Nakayama
authors.forename: Naotsugu
authors.initials: N
authors.lastname: Ichimaru
authors.forename: Norio
authors.initials: N
authors.lastname: Nonomura
authors.forename: Akihiko
authors.initials: A
authors.lastname: Okuyama
authors.forename: Masato
authors.initials: M
authors.lastname: Kimura
authors.forename: Yukihiko
authors.initials: Y
authors.lastname: Tomita
authors.forename: Keiji
authors.initials: K
authors.lastname: Yuien
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009379:Neoplasms, Muscle Tissue / Q000473:pathology* / Q000601:surgery; D001749:Urinary Bladder Neoplasms / Q000473:pathology* / Q000601:surgery