Parmar Kalpesh, Manoharan Vignesh, Kumar Santosh, Khanna Ashish, Thakur Abhishek
Department of Urology, PGIMER, Chandigarh, India.
J Endourol Case Rep. 2019 Aug 30;5(3):92-95. doi: 10.1089/cren.2019.0006. eCollection 2019.
Supernumerary kidney is a rare anomaly. Not >100 cases have been reported. It was defined by Geisinger as the "free accessory organ," which is a distinct, encapsulated, large, or small parenchymatous mass topographically related to the usual kidney by a loose cellular attachment at most and often by no attachment at times. A 28-year-old woman presented with left lower abdomen pain. On evaluation, she was found to have left supernumerary kidney with renal pelvic stone 13 × 8 mm, which was placed below the native kidney. The ureter was merging with native kidney ureter just above the vesicoureteral junction. CT angiography revealed anomalous vessels supplying the supernumerary kidney. Patient underwent semirigid ureteroscopy and laser lithotripsy and complete stone clearance was achieved. Double-J stent was removed after 2 weeks and on follow-up, there is no recurrence of stones. Supernumerary kidney is a rare congenital anomaly. Renal stone in supernumerary kidney presenting as lower abdomen pain is rarely reported. Imaging is essential to confirm the diagnosis and look for other associated anomalies. Ureteroscopy and laser lithotripsy are suitable options in such cases possibly because of low-lying kidney and location of stone in renal pelvis. Other options are mini percutaneous nephrolithotomy and retrograde intrarenal surgery.
重复肾是一种罕见的异常情况。报告的病例数不超过100例。盖辛格将其定义为“游离附属器官”，即一个独立的、有包膜的、大小不一的实质性肿块，在解剖位置上与正常肾脏最多通过疏松的细胞附着相连，有时甚至没有连接。一名28岁女性因左下腹疼痛就诊。经评估，发现她有左侧重复肾，伴有13×8毫米的肾盂结石，位于正常肾脏下方。输尿管在膀胱输尿管连接处上方与正常肾脏输尿管汇合。CT血管造影显示有异常血管供应重复肾。患者接受了半硬性输尿管镜检查和激光碎石术，结石完全清除。两周后取出双J支架，随访期间结石无复发。重复肾是一种罕见的先天性异常。以腹痛为表现的重复肾肾结石很少见。影像学检查对于确诊和寻找其他相关异常至关重要。输尿管镜检查和激光碎石术可能是此类病例的合适选择，可能是因为肾脏位置较低且结石位于肾盂。其他选择包括微创经皮肾镜取石术和逆行性肾内手术。
