mycotic aneurysm

etiology

IV drug abuse
bacterial endocarditis (12%)
immunocompromise (malignancy, EtOH, steroids, chemo, DM, etc.)
S/P aortic valve surgery, CABG

organism

S. aureus (53%)
Salmonella (33-50%)
streptococcus

site

ascending aorta > visceral artery > intracranial artery > upper/lower extremity artery

findings

saccular structure arising eccentrically from aortic wall
periaortic gas formation
adjacent vertebral osteomyelitis
adjacent reactive lymph node enlargement
life threatening hemmorhage (75%)
67% overall mortality

[Home] [Cardiovascular system] [Disclaimer]

© 2002, C.E. Kahn, Jr.
2002-04-18