CTICasesEmpyema (Parvimonas micra)
Imaging findings
Radiographs and CT show a hydropneumothorax, trapped lung, and a bronchopleural fistula. An esophagram reveals a large Zenker's diverticulum retaining contrast.
Key takeaways
A Zenker's diverticulum puts patients at a high risk for aspiration. In this case, aspiration led to a necrotizing pneumonia and subsequent empyema caused by a rare oral flora pathogen, *Parvimonas micra*.
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