title: [Utricular papillomatosis. A case report].
abstract: A case of utricular papillomatosis is reported herein. A 50-year-old male patient consulted our hospital with a complaint of asymptomatic macrohematuria. Endoscopic examination revealed papillomatous tumor tightly growing within the utricle. Transurethral resection of the tumor was performed. Histopathologically, the tumor consisted of numerous villous structures with slender fibrovascular cores and overlying cuboidal cells in 2 to 3 cell layers. Invasive growth or cellular atypia could not be found. Utricular papillomatosis is rare, and only one similar case was reported to my knowledge in the English literature for the last five years. Such rarity and peculiar clinicopathological characteristics prompted us to report this case.
authors.affiliation: Division of Urology, Sanshinkai Hara Hospital, Fukuoka, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Yamada
authors.forename: K
authors.initials: K
authors.lastname: Kimiya
authors.forename: A
authors.initials: A
authors.lastname: Yamaguchi
authors.forename: K
authors.initials: K
authors.lastname: Sagiyama
authors.forename: S
authors.initials: S
authors.lastname: Hara
authors.forename: M
authors.initials: M
authors.lastname: Kinjo
mesh_terms: D006801:Humans; D008297:Male; D008875:Middle Aged; D010212:Papilloma / Q000175:diagnosis* / Q000473:pathology; D011467:Prostate / Q000473:pathology; D011471:Prostatic Neoplasms / Q000175:diagnosis* / Q000473:pathology