Fig. 3

Serial contrast-enhanced CT for Patient 1 and Patient 2. Case 1: Contrast-enhanced CT on postoperative day (POD) 8, 19, and 27 for Patient 1. Contrast-enhanced CT on POD 8 reveals stenosis of the right hepatic artery (RHA) and a low-density area around the common hepatic artery (CHA), suggesting dissection with the formation of a false lumen. There was no bleeding in the false lumen. On POD 19, an obstruction of the RHA and stenosis of the CHA was observed. On POD 27, bleeding in the false lumen was observed around the CHA and the celiac artery (CA). Case 2: Contrast-enhanced CT on POD 10, 16, and 29 for Patient 2. Contrast-enhanced CT on POD 10 reveals a stenosis of the CHA and the CA as well as a low-density area around them. On POD 16, bleeding in the false lumen was observed around the CA. On POD 29, an obstruction of the CHA was observed, and the bleeding in the false lumen around the CHA and the CA increased chronologically. Abbreviations: PV, portal vein; IVC, inferior vena cava; Ao, aorta