Aortic Branch Aneurysms By Mark A Farber, MD, FACS, University of North Carolina; Federico E Parodi, MD, University of North Carolina School of Medicine Reviewed / Revised Jun 2022 | Modified Sep 2022 View Patient Education Symptoms and Signs Diagnosis Treatment Key Points Aneurysms may occur in any major aortic branch; such aneurysms are much less common than abdominal or thoracic aortic aneurysms.