CTICasesStaphylococcus Aureus Septic Arthritis with Septic Emboli
Imaging findings
CT chest shows multiple, small peripheral pulmonary nodules and subpleural wedge-shaped consolidations, some with cavitation, in a patient with Staph aureus septic arthritis of the knee, representing septic pulmonary emboli.
Key takeaways
Septic pulmonary emboli typically present as multiple, bilateral, peripheral subpleural nodules or consolidations that rapidly cavitate. S. aureus is the most common causative organism, originating from osteomyelitis, septic arthritis, or endocarditis, and requires prompt targeted antibiotic therapy.
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