Dissecting hepatic artery aneurysm caused by an isolated spontaneous celiac artery dissection is a life-threatening condition with only 5 cases reported previously. We report a successful resection and revascularization of all affected arteries with an inferior mesenteric vein graft in a 59-year-old asymptomatic man with a large dissecting common and proper hepatic artery aneurysm (diameter, 4.2 cm) due to a spontaneous dissection from the celiac trunk to the proximal splenic artery and the right hepatic artery. Our case suggests that intervention should not be delayed in cases of hepatic aneurysm and a long dissection extending to the proper hepatic artery because of the difficulty in restoring hepatic circulation and preventing rupture.
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