Rupture of aortic aneurysms into the gut.

Rupture of an aortic aneurysm into the gut is uncommon. The duodenum is most often involved, stomach and jejunum being next in order of frequency. Involvement of the cesophagus is now decidedly rare probably due to the declining incidence of cardiovascular syphilis. We report three cases of aortic aneurysm; two in the abdomen ruptured into the second part of the duodenum and one in the thorax into the cesophagus. A fistula between aorta and inferior vena cava was also present in one of the cases with an abdominal aneurysm; in the other the wall of the inferior vena cava was partially eroded.