“…This diagnosis should nevertheless be considered in patients with abdominal pain and gastrointestinal bleeding when routine investigations fail to find the source. This is especially so when there is jaundice or a known predisposing factor such as septicaemia, bacterial endocarditis, arteriosclerosis, hereditary telangiectasia, gallbladder disease, trauma, or previous biliary surgery (Malloy and Jason, 1942 ;Condon et at., 1967). Retrograde angiography (Kirklin et al, 1955) is essential in all suspected cases, as onethird of such aneurysms are intrahepatic and can be diagnosed only by this method.…”