Delayed Bleeding After Retrograde Intrarenal Surgery: A Rare Complication in Ectopic Pelvic Kidney.

Anatomical variations in the pelvic ectopic kidney (PEK) present many challenges to stone treatment. Retrograde intrarenal surgery (RIRS) has emerged as the treatment of choice for small to medium stones. We present a case of delayed hemorrhage due to an arteriocaliceal fistula.