Two-stage treatment of an unusual haemobilia caused by intrahepatic pseudoaneurysm

Figure 1 Emergency endoscopic retrograde cholangiopancreatography showing a solitary filling defect which was 12 mm in diameter (arrows).

Figure 2 CT and Angiography image of an 84-year-old man with haemobilia. A: CT revealing a high-density area which was 1 cm in diameter at the lateral segment in the artery phase (arrows). It protruded into the intrahepatic duct (arrowhead). B: Angiography showing a small aneurysm over the A3, which was the second branch of the left hepatic artery (arrows).

Figure 3 Histological findings revealing that the intrahepatic artery had ruptured into the intrahepatic bile duct (arrows). a: artery; b: bile duct. The inner membrane, elastic laminae, and tunica media of the artery could not be detected at the side of rupture (arrowhead). A: HE stain, × 10; B: Elastica van Gieson stain, × 10.