Background: Intrahepatic arterial aneurysms are rare and typically related to trauma, transplantation, iatrogenic injury, or infection. They account for approximately 10% of clinically significant hemobilia.
Case Report: We present the case of a 49-year-old man with an intraparenchymal hepatic artery aneurysm that presented as massive hemobilia following a laparoscopic cholecystectomy. The aneurysm could not be managed by interventional embolization and required a left hepatic lobectomy, which was performed laparoscopically.
Discussion: Evaluation of hemobilia requires a multidisciplinary team approach. The diagnosis of hepatic artery aneurysm can be most readily made by MRI or CT scan. Interventional embolization of the aneurysm may be effective treatment but is not always possible due to anatomic considerations. Where indicated, surgical resection in a manner that preserves a maximal amount of normal hepatic parenchyma is the treatment of choice.
Conclusion: This is the first report of laparoscopic liver resection performed for bleeding from a hepatic artery aneurysm and adds an effective treatment modality to the surgical armamentarium.
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