An elderly man presents with h/o abdomianl pain. He is found to have a fusiform dilatation of the descending aoa. Likely cause is:
The is a case, of a symptomatic aneurysm suggested by pain as well as a fusiform dilatation of the aoa. 95% of the abdominal aneurysms are due to atherosclerosis. Ref: Bailey and Love's Sho Practice of Surgery, 25th Edition, Page 918 and 23rd Edition, Page 727.
Trauma
Atherosclerosis
Right ventricular failure
Syphilitic aoitis