Segmental acute tubular necrosis in a living renal allograft with a single artery transplanted following laparoscopic procurement

Abstract

On radionuclide scanning, acute tubular necrosis (ATN) commonly manifests as adequate perfusion represented by persistently diffuse radiotracer activity throughout the parenchyma of renal allograft transplanted with a single artery with no or poor excretion of radiotracer. Following transplantation, the abnormal "wedge-shaped" finding of radiotracer retention in an isolated arterial segment of the graft kidney on Tc-99 m mercaptoacetyltriglycine (MAG3) scan with significant clearance on sequential study demonstrates vascular etiology of tubular dysfunction and represents segmental ATN rather urinary extravasation or artifact. Copyright © 2011 Wiley Periodicals, Inc.