Katims Andrew, Rosen Daniel C, Chandhoke Ryan, Gupta Mantu
Department of Urology, Icahn School of Medicine at Mount Sinai, New York, New York.
J Endourol Case Rep. 2020 Mar 11;6(1):42-44. doi: 10.1089/cren.2019.0108. eCollection 2020.
Complete ureteral duplication is uncommon and occasionally associated with ureteral stone obstruction. Even rarer is ectopic insertion of a ureter into the urethra. We describe a case of a 75-year-old man with a history of robot-assisted laparoscopic prostatectomy and complete unilateral duplicated collecting system with a ureteral stone obstructing an ectopic ureter inserting into the urethra. The stone was effectively treated using ureteroscopy with laser lithotripsy. Ectopic ureters can be located in any of the Wolffian duct structures, and can perhaps be relocated iatrogenically secondary to bladder neck reconstruction during a prostatectomy. This should be kept in mind when performing ureteroscopy on this patient population.
完全性输尿管重复畸形并不常见，偶尔与输尿管结石梗阻相关。输尿管异位插入尿道则更为罕见。我们描述了一例75岁男性患者，有机器人辅助腹腔镜前列腺切除术病史，存在完全性单侧重复集合系统，输尿管结石梗阻了一条异位插入尿道的输尿管。通过输尿管镜下激光碎石术有效地治疗了结石。异位输尿管可位于任何中肾管结构中，在前列腺切除术期间，可能因膀胱颈重建而医源性地重新定位。对此类患者群体进行输尿管镜检查时应牢记这一点。
