CS and NMP groups had insignificant difference in the histological scoring on the injury of liver parenchyma before reperfusion (P=.142), but had significant difference after starting reperfusion (P=.041, .058, .008 at 4, 12, and 24 hours respectively); the CS-preserved livers gradually presented sinusoidal congestion, profuse hemorrhage and necrosis during reperfusion; the NMP-preserved livers looked quite intact consistently. (20× magnification; H&E staining)