Schwarz R, Stephens F D
J Urol. 1978 Nov;120(5):592-6. doi: 10.1016/s0022-5347(17)57292-4.
We describe 9 examples of a rare congenital anomaly in which the unduplicated ureter joined the vas and exhibited long persisting mesonephric ducts that resembled the ureter rather than the vas. Some of the kidneys were unexpectedly well developed. It is proposed that a cranial ectopic ureteral bud may have induced a metanephric kidney in the region of the mesonephros or the ectopic bud and the metanephric blastema were displaced cranially.
我们描述了9例罕见的先天性异常病例，其中未重复的输尿管与输精管相连，并呈现出持续存在的长中肾管，这些中肾管类似输尿管而非输精管。部分肾脏发育情况出人意料地良好。有人提出，头侧异位输尿管芽可能在中肾区域诱导了后肾的形成，或者异位芽和后肾胚基发生了头侧移位。
