CTICasesLegionella micdadei Pneumonia (Pancreas Transplant Patient)
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Imaging findings
Chest CT of a pancreas transplant recipient shows multifocal, mass-like areas of lobar consolidation and bronchopneumonia/organizing pneumonia pattern rather than a single focal nodule, mimicking bacterial bronchopneumonia.
Key takeaways
Legionella micdadei can present with a variety of radiologic patterns, ranging from solitary round nodular pneumonia to multifocal, confluent mass-like consolidation mimicking organizing pneumonia or bacterial bronchopneumonia. It accounts for up to 60% of non-pneumophila Legionella infections and typically behaves as an opportunistic pathogen in solid organ transplant recipients.
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