title: Urothelial carcinoma arising from a large ureteral polyp.
abstract: We report an unusual case of a urothelial tumor on a ureteral polyp without hydronephrosis. The patient was a 50-year-old male. He had experienced several episodes of gross hematuria. Cystoscopy revealed a tumor that periodically prolapsed into the bladder. The tumor had a smooth-surfaced stalk with an erythematous, edematous lesion at the end. Tomography showed a mass and filling defect at the left ureterovesical junction. The results of urine cytology tests were negative. After the tumor was identified as a urothelial carcinoma by frozen biopsy analysis, a ureteroscopic resection was performed. The final pathological diagnosis was urothelial carcinoma arising in a ureteral polyp. No recurrence of the tumor or polyp was observed at the 3-month follow-up. To our knowledge, this is the first report in the Korean population of a urothelial tumor arising from a ureteral polyp.
authors.affiliation: Department of Urology, Inje University College of Medicine, Busan, Korea.
authors.forename: Kweonsik
authors.initials: K
authors.lastname: Min
authors.forename: Soo-Jin
authors.initials: SJ
authors.lastname: Jung
authors.forename: Jae-Il
authors.initials: JI
authors.lastname: Chung
authors.forename: Jang Ho
authors.initials: JH
authors.lastname: Yoon
authors.forename: Dong Il
authors.initials: DI
authors.lastname: Kang