[Atypical aneurysms of the abdominal aorta]

The authors submit a report on two patients with pseudoaneurysmatic bulging in the subrenal portion of the abdominal aorta. They present detailed histological findings in the two operated patients and discuss the aetiology of these formations. They draw attention on the failure of aortographic examinations in the diagnosis of these formations and the necessity of sonographic or CT examination. During surgery only partial resection of these formations is possible with subsequent reconstruction of the arterial circulation. The long-term results of these operations are favourable.