A spontaneous dissecting aneurysm of visceral arteries without trauma or an iatrogenic cause is rare. We would like to report a case of a dissecting aneurysm of the common and proper hepatic artery with dissection of the celiac axis and the superior mesenteric artery (SMA). A 55-year-old man presented abdominal pain. In the abdominal computed tomography (CT), an intraabdominal hematoma and a dissecting aneurysm of the common and proper hepatic artery with dissection of the celiac axis as well

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... the SMA had been found. The size of the dissecting aneurysm was growing in a follow-up CT. We performed a bypass between the right hepatic artery and a celiac artery with a saphenous vein after exclusion of the aneurysm. A bypass graft was occluded in the early postoperative period but the patient recovered without major sequelae.