ANSWER

From the question on page 1673

The patient had a large inflammatory abdominal aortic aneurysm. The abdominal CT scan shows a large infrarenal aortic aneurysm with a maximum diameter of 7.5 cm extending into the iliac vessels. There is an enhancing soft-tissue cuff surrounding the anterolateral margin of the aneurysm. The aneurysm appears to compress the third part of the duodenum (fig 1 below), which, however, was not detected at endoscopy. These CT findings were suggestive of an inflammatory aneurysm. Inflammatory abdominal aortic aneurysms represent 3–10% of all abdominal aortic aneurysms and occur predominantly in men. …