The authors report 489 patients. With abdominal aortic aneurysms (AAA). Twelve patients underwent operation for AAA and oncological resection in abdominal cavity. In this group were five patients with AAA and colorectal carcinoma. All oncological patients with AAA were operated electively. The reconstruction of AAA and oncological resection were done at the same time. No patient died in the first 30 postoperative days. The authors conclude that AAA repair and oncological resection should be performed simultaneously in elective patients.