When compared with the previous scan there has been a significant increase in the size of the infrarenal abdominal aortic aneurysm now measuring up to 6.1 cm in maximum AP diameter, previously 4.7 cm. It is now more saccular in nature.
The rapid increase in size of the aneurysm is suggestive of an infected inflammatory/mycotic aneurysm and urgent vascular referral is advised.