Surgery Kidney & Ureturs b8c95725 The investigation of choice for renal scarring defect in kidney: A DMSA scan B DTPA scan. C Dexa scan D MCU High-Yield Explanation Ans. (a) DMSA scanRef: Bailey 26th Edition, Pages 1276-1277* IOC for Renal Structure scarring - DMSA* IOC for Congenital PUJ obstruction - DTPA