Laparoscopic resection and ureteroureterostomy for congenital midureteral stricture.

A 16-year-old boy presented with flank pain and was found to have right-sided hydronephrosis and hydroureter on ultrasonography and an intravenous urogram. A retrograde pyelogram revealed a tight, short-segment, non-negotiable stricture in the midureter. A CT scan excluded extrinsic compression.

Laparoscopic ureterolysis and reconstruction of a retrocaval ureter.

A 32-year-old man was investigated for repeated episodes of right-sided flank pain. Ultrasonography showed a dilated right pelvicalyceal system and upper ureter as well as multiple gallstones; subsequent intravenous urogram demonstrated a retrocaval ureter. At surgery, a right-sided double-J ureteric stent was placed under fluoroscopic guidance.