Delakas D, Tsichlakis M, Koutsoubi K, Cranidis A
Department of Urology, University Hospital, Heraklion, Crete, Greece.
Int Urol Nephrol. 1996;28(5):701-7. doi: 10.1007/BF02552168.
Vas deferens ectopia is a rare congenital anomaly which is frequently associated with anorectal abnormalities. There have been 20 cases up to date with an ectopic vas deferens inserting into the ureter. Out of these 6 had a bilateral insertion and another 4 cases with an ectopic vas deferens inserting directly into the bladder, out of which 1 had a bilateral insertion. There is an embryological hypothesis which may explain this rare condition that may result from a possible underlying defect of the proximal vas precursor segment of the Wolffian duct. Herein, we present a case of an ectopic vas deferens terminating in the urinary bladder and accompanied by ipsilateral renal agenesis. This is the second case report in the world literature.
输精管异位是一种罕见的先天性异常，常与肛门直肠畸形相关。迄今为止，已有20例输精管异位插入输尿管的病例。其中6例为双侧插入，另有4例输精管异位直接插入膀胱，其中1例为双侧插入。有一种胚胎学假说可以解释这种罕见情况，它可能是由中肾管近端输精管前体段潜在的缺陷导致的。在此，我们报告一例输精管异位终止于膀胱并伴有同侧肾缺如的病例。这是世界文献中的第二例病例报告。
