The Most common cause of a Mycotic aneurysm is: (A) Candida albicans, (B) Treponema pallidum, (C) Staphylococcus aureus, (D) Pseudomonas aeuriginosa
Answer is C. Primary infection of the aoic wall results in aneurysm formation termed mycotic aneurysms, the pathogens usually are bacteria, most common being Staphylococcus aureus, Staphylococcus epidermidis, Salmonella, and Streptococcus. ref - Harrisons internal medicine 20e pg1918