“…94 The clinical importance of a portal vein aneurysm is related to its size. A small aneurysm usually does not show symptoms, while large ones are described as the cause Visceral Venous Aneurysms: A Systematic Review of duodenal compression, 43,80 inferior vena cava compression, 43 biliary tract obstruction 33 and portal vein thrombosis 1,5,19,24,31,46,55,57,61,62,66,74,75,77,81 Rupture of a portal venous aneurysm is reported in four patients, 1,59,61,86 one of whom died. A case of splenic vein aneurysm rupture is described in a young woman a few hours after delivery.…”