An unusual case of haemobilia.

Arterio-biliary fistula is an uncommon cause of haemobilia. We describe a case of right hepatic artery pseudo-aneurysm causing arterio-biliary fistula and presenting as severe melaena and cholangitis. Gastroduodenoscopy failed to establish the exact source of bleeding and hepatic artery angiography and selective embolization of the pseudo-aneurysm successfully controlled the bleeding. Pseudo-aneurysm of the hepatic artery is mostly iatrogenic due to biliary intervention, as demonstrated in this case. Difficulty in diagnosis and management is discussed together with a review of the literature.