Caval thrombectomy in a ruptured aortic aneurysm associated with aorto-caval fistula.

Aorto-caval fistula is a rare but recognized complication of an aortic aneurysm. The association of pulmonary emboli has also been described and is attributed to paradoxical embolisation of the atheromatous contents of the aneurysm sac. This report describes a unique case of a fistula associated with a ruptured aneurysm in which a large intracaval thrombus was removed at the time of operation.