Table 3.

Etiology of aortic arch aneurysms.

Etiology	n (%)
Mycotic[6,22,28,29,32,37,38,40]	12 (42.9)
Salmonella[15,29]	2 (16.7)
Clostridium septicum[38]	1 (8.3)
Clostridium septicum, Enterobacter, and Streptococcus[40]	1 (8.3)
Pseudomonas aeruginosa[32]	1 (8.3)
Streptococcus dysgalactiae[32]	1 (8.3)
Candida albicans[32]	1 (8.3)
Unspecified[6,22,28,32,37]	5 (41.7)
Atherosclerotic[12,20,28,31]	11 (39.3)
Penetrating aortic ulceration[4,18,33]	3 (10.7)
Traumatic[43]	1 (3.6)
Atherosclerotic/traumatic[34]	1 (3.6)