title: [A case of inverted papilloma of the renal pelvis, associated with metachronous urothelial carcinoma of the urinary bladder].
abstract: The patient visited our hospital because of macrohematuria. Cystoscopical examination did not reveal any bladder tumors but a tumor shadow in the right renal pelvis was revealed by computed tomographic scan. Urothelial carcinoma was suspected and right nephroureterectomy was performed. Pathologically the tumor was diagnosed as inverted papilloma. Four months later during the follow up of the tumor, urothelial carcinoma of the urinary bladder was detected by cystoscopy. Inverted papilloma of the renal pelvis is a rare lesion and only 39 cases to date have been reported. Because inverted papilloma of the upper urinary tract is often associated with other urothelial tumors, careful long-term follow up is advisable.
authors.affiliation: The Department of Urology, Tsudanuma Central General Hospital, Japan.
authors.forename: Kazuo
authors.initials: K
authors.lastname: Koizumi
authors.forename: Junji
authors.initials: J
authors.lastname: Shiga
authors.forename: Hajime
authors.initials: H
authors.lastname: Yokota
authors.forename: Ken
authors.initials: K
authors.lastname: Motoori
authors.forename: Shouiti
authors.initials: S
authors.lastname: Tobari
authors.forename: Michitaka
authors.initials: M
authors.lastname: Kouno
authors.forename: Minoru
authors.initials: M
authors.lastname: Hatano
authors.forename: Yuuko
authors.initials: Y
authors.lastname: Takaishi
authors.forename: Ken
authors.initials: K
authors.lastname: Yamazaki
authors.forename: Masahisa
authors.initials: M
authors.lastname: Katou
authors.forename: Katunori
authors.initials: K
authors.lastname: Nishida
mesh_terms: D000368:Aged; D006801:Humans; D007680:Kidney Neoplasms / Q000473:pathology*; D007682:Kidney Pelvis; D008297:Male; D016609:Neoplasms, Second Primary / Q000473:pathology*; D018308:Papilloma, Inverted / Q000473:pathology*; D001749:Urinary Bladder Neoplasms / Q000473:pathology*; D019459:Urothelium / Q000473:pathology