title: [Solitary Bladder Metastasis of Chromophobe Renal Cell Carcinoma: Report of a Case].
abstract: Bladder metastasis of renal cell carcinoma (RCC) is relatively rare, and only 43 cases have been reported in the Japanese literature. In most cases, the histology of the primary site was clear cell type. Here, we report a case of bladder metastasis of chromophobe RCC. A 74-year-old man presented with asymptomatic gross hematuria. He had a history of chromophobe RCC treated with radical nephrectomy 11 years previously. Since cystoscopy revealed a papillary pedunculated tumor, he underwent transurethral resection of the bladder tumor (TUR-Bt). The pathological diagnosis was chromophobe RCC because the histological findings were similar to those of nephrectomized specimens. Four years after TUR-Bt, the patient received bacillus Calmette-Guérin (BCG) therapy under the diagnosis of carcinoma in situ of urothelial cancer of the bladder but not chromophobe RCC. There was no recurrence of chromophobe RCC within 5 years follow-up after TUR-Bt. To the best of our knowledge, there has been only one other case report of bladder metastasis of chromophobe RCC in the Japanese literature.
authors.affiliation: The Department of Urology, Jikei University School of Medicine.
authors.forename: Satoshi
authors.initials: S
authors.lastname: Nitta
authors.affiliation: The Department of Urology, Jikei University School of Medicine.
authors.forename: Takahiro
authors.initials: T
authors.lastname: Suetomi
authors.affiliation: The Department of Urology, Jikei University School of Medicine.
authors.forename: Kousuke
authors.initials: K
authors.lastname: Kojou
authors.affiliation: The Department of Urology, Jikei University School of Medicine.
authors.forename: Ken
authors.initials: K
authors.lastname: Tanaka
authors.affiliation: The Department of Urology, Jikei University School of Medicine.
authors.forename: Masahiro
authors.initials: M
authors.lastname: Kurobe
authors.affiliation: The Department of Urology, Jikei University School of Medicine.
authors.forename: Takayuki
authors.initials: T
authors.lastname: Yoshino
authors.affiliation: The Department of Urology, Tsukuba Gakuen Hospital.
authors.forename: Kazumitu
authors.initials: K
authors.lastname: Yamazaki
authors.affiliation: The Department of Urology, Faculty of Medicine, University of Tsukuba.
authors.forename: Tomokazu
authors.initials: T
authors.lastname: Kimura
authors.affiliation: The Department of Urology, Faculty of Medicine, University of Tsukuba.
authors.forename: Shuya
authors.initials: S
authors.lastname: Kandori
authors.affiliation: The Department of Urology, Faculty of Medicine, University of Tsukuba.
authors.forename: Takashi
authors.initials: T
authors.lastname: Kawahara
authors.affiliation: The Department of Urology, Faculty of Medicine, University of Tsukuba.
authors.forename: Kouji
authors.initials: K
authors.lastname: Kawai
authors.affiliation: The Department of Urology, Faculty of Medicine, University of Tsukuba.
authors.forename: Jun
authors.initials: J
authors.lastname: Miyazaki
authors.affiliation: The Department of Diagnostic Pathology, Faculty of Medicine, University of Tsukuba.
authors.forename: Youko
authors.initials: Y
authors.lastname: Yano
authors.affiliation: The Department of Diagnostic Pathology, Faculty of Medicine, University of Tsukuba.
authors.forename: Kenji
authors.initials: K
authors.lastname: Yamada
authors.affiliation: The Department of Diagnostic Pathology, Faculty of Medicine, University of Tsukuba.
authors.forename: Masayuki
authors.initials: M
authors.lastname: Noguchi
authors.affiliation: The Department of Urology, Faculty of Medicine, University of Tsukuba.
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Nishiyama
mesh_terms: D000368:Aged; D002292:Carcinoma, Renal Cell / Q000556:secondary* / Q000601:surgery; D003558:Cystoscopy; D006801:Humans; D007680:Kidney Neoplasms / Q000473:pathology* / Q000601:surgery; D008279:Magnetic Resonance Imaging; D008297:Male; D064847:Multimodal Imaging; D009392:Nephrectomy; D014057:Tomography, X-Ray Computed; D001749:Urinary Bladder Neoplasms / Q000556:secondary* / Q000601:surgery