Figure 2b. Aortic origin of the replaced right hepatic artery and IPA as a common trunk in a 45-year-old man with an HCC in the right anterior hepatic lobe. (a) Arterial phase dynamic CT scan shows the common trunk (arrow) of the replaced right hepatic artery and IPAs originating from the aorta. At celiac angiography, the right hepatic artery was not seen and there was no definitive tumor staining. (b) Selective right hepatic arteriogram from the first session of TACE shows the common trunk (arrow) of the replaced right hepatic artery and IPAs. Note the tumor staining (*) from the replaced right hepatic artery. TACE of the tumor was successfully performed by superselectively inserting a 3-F microcatheter into the tumor feeding branches of the right anterior superior hepatic artery. 1 = anterior trunk of ascending branch, 2 = posterior trunk of ascending branch, 3 = gastric branch.