Pseudoaneurysm of the cystic artery: a rare cause of hemobilia.

Aneurysms are a rare cause of hemobilia, and usually involved are branches of the hepatic and gastro-duodenal arteries. A case of a patient with hemobilia secondary to a pseudoaneurysm of the cystic artery is presented. Fewer than 10 cases have been reported in the literature, and in all of them the condition was associated with inflammation of the gall bladder, as in our case. Selective hepatic angiography is the procedure of choice for diagnosis. Upper gastrointestinal endoscopy with side-viewing scopy can demonstrate bleeding from papilla. Color-Doppler ultrasonography also may prove to be useful in equivocal cases. Cholecystectomy and ligation of cystic artery with proximal control of the hepatic artery was done at laparotomy after diagnosis was made.