CTICasesMycotic Pseudoaneurysm (MAC Infection)
Imaging findings
A cavitary lesion in the right upper lobe with satellite nodules that progressed to a rapidly enlarging pseudoaneurysm; demonstrated a focal blush on CT.
Key takeaways
Severe hemoptysis in patients with fibrocavitary Mycobacterium avium complex (MAC) can stem from mycotic pseudoaneurysms of pulmonary arteries.
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