Rupture of a previously thrombosed hepatic artery aneurysm.

Hepatic artery aneurysm (HAA) is a rare form of visceral artery aneurysm. Historically, most HAAs were ruptured at presentation, but advances in imaging have led to an increase in the diagnosis of asymptomatic HAAs. Description of the natural history of patent HAAs has been difficult because of their rarity, even more so for less common thrombosed HAAs. We report the case of a 74-year-old man who experienced the rupture of a previously thrombosed HAA. He was successfully surgically treated with ligation of the aneurysm. Our case provides insight into the progression and management of thrombosed HAAs.