CTICasesLegionella pneumophila Pneumonia
Imaging findings
CT chest shows bilateral, multifocal consolidations and ground-glass opacities, predominantly in the dependent lungs. Diagnosis was made via positive urine antigen testing.
Key takeaways
Legionella pneumophila pneumonia typically presents as a severe community-acquired pneumonia. Characteristically, it is already bilateral at presentation on imaging, and urine antigen testing is highly specific for serogroup 1 but does not detect other Legionella species.
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