what is an avulsed ureter
Ureteral avulsion is a rare but well known complication of ureteroscopy, almost always related to the use of an ureteroscope too large to be readily accommodated by the ureter or, in most cases, by an attempt to pull an inadequately fragmented or impacted stone down from the proximal or mid ureter.
Although an infrequent event in the endoscopic management of ureteral calculi (0.2-1%) (7,8), with only few cases reported in the literature, ureteral avulsion is a potential serious complication that should always be taken into account when performing such procedures.