Pathology 70 year old man has abdominal pain with mass in abdomen. Angiography reveals aneurysm of aorta. Most likely cause is: A Trauma B Atherosclerosis C Syphilis D Congenital 💡 Explanation 70 year old man has abdominal pain with mass in abdomen. Angiography reveals aneurysm of aorta. Most likely cause is: ✓ Correct Answer: B. Atherosclerosis