a) Axial contrast enhanced CT of a teenager who sustained a handlebar injury to the abdomen. Large laceration/haematoma (arrow) and no active extravasation. b) Coronal reconstruction demonstrates free fluid around the right lobe of the liver (arrow) and the extent of the laceration. He was managed conservatively initially but deteriorated several days later. c) An emergency CT showed a contrast blush (arrow). d) Maximimum intensity projections demonstrated that the most likely cause was the right anterior portal vein (arrow). At operation (not by our team) biliary peritonitis was found but there was no active bleeding and subsequent hepatic angiography was negative.