Allograft renal vein thrombosis has been reported in 1 to 4% of the renal transplants. Salvage of the graft is possible only if there is prompt recognition and operative intervention. We present the case of a living-related renal transplant that was salvaged because of early diagnosis of allograft renal vein thrombosis by correlation of the radioisotopic angiogram, renogram and duplex doppler sonography.