title: [Inverted papilloma of the ureter].
abstract: Two cases of ureteral inverted papilloma are reported. Case 1: A 48-year-old male had asymptomatic gross hematuria and filling defect of left middle ureter on intravenous pyelography. Segmental resection of ureter was performed. The specimen was a 1 cm polypoid lesion with histologic features resembling "multifocal bud-like proliferation", which was reported as the initial stage of the inverted urothelial tumor by Kunze et al. Case 2: A 64-year-old female with asymptomatic gross hematuria and complete obstruction of left middle ureter on ante- and retrograde pyelograms. Total nephroureterectomy was performed. A 4 cm lobulated and pedunculated lesion with histologic features of typical inverted urothelial papilloma was resected. Twenty-one cases of ureteral inverted papilloma in the literature, including our cases, are analyzed.
authors.affiliation: Department of Urology, Tokushima University, School of Medicine.
authors.forename: Y
authors.initials: Y
authors.lastname: Aga
authors.forename: S
authors.initials: S
authors.lastname: Kagawa
authors.forename: H
authors.initials: H
authors.lastname: Takigawa
authors.forename: F
authors.initials: F
authors.lastname: Yoneda
authors.forename: Y
authors.initials: Y
authors.lastname: Sumiyoshi
authors.forename: K
authors.initials: K
authors.lastname: Kurokawa
authors.forename: T
authors.initials: T
authors.lastname: Sano
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010212:Papilloma / Q000000981:diagnostic imaging / Q000473:pathology*; D011859:Radiography; D014516:Ureteral Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D014517:Ureteral Obstruction / Q000000981:diagnostic imaging / Q000209:etiology