CTICasesExogenous Lipoid Pneumonia from Vicks VapoRub
Imaging findings
CT in a middle-aged man shows an area of fat-attenuation consolidation typical of lipoid pneumonia. Transbronchial biopsy shows abnormal lung architecture with scattered interstitial droplets of fat and foreign-body giant cells containing lipid droplets.
Key takeaways
Exogenous lipoid pneumonia results from aspiration or inhalation of oil-based products, here Vicks VapoRub, and is recognizable on CT by fat-attenuation consolidation. Histology confirms the diagnosis with interstitial fat droplets and a foreign-body giant-cell reaction to the lipid, and a careful medication and home-remedy history is key.
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