Use of the superior mesenteric artery as an arterial interposition graft in horseshoe kidney transplantation: a case report.

Vascular reconstruction in kidney transplantation remains a technical challenge, especially in cases involving horseshoe kidneys, which often have anomalous vascular and ureteral anatomy. Proper selection of reconstruction technique and vessel graft source is crucial for long-term organ graft survival. This case report describes the successful use of a donor superior mesenteric artery segment as an interposition graft between a compromised donor renal artery and recipient external iliac artery in a horseshoe kidney transplant. To the best of our knowledge, this is the first reported case where the superior mesenteric artery was successfully utilized as an interposition arterial graft in renal transplantation.