Aorta upper abdomen enlargement, should i be concerned?

Yes.: This implies an aneurysm of the abdominal aorta. An aneurysm is an enlargement of a blood vessel because of weakness in the vessel wall. Like a balloon, if it becomes large enough, it has the potential to burst and lead to a high risk of death. Have it evaluated by a board-certified vascular surgeon who can better advise you on the best course of management.