- one of the three presentations of amyloidosis in the chest (the other two are tracheobronchial and nodular septal)
- solitary or multiple nodules with smooth contours
- lower lobe, subpleural/peripheral location
- may calcify or undergo osseous metaplasia
- larger nodules may cavitate or become hemorrhagic
- resection is diagnostic and curative
- differential - primary or metastatic neoplasms
Exogenous Lipoid Pneumonia
- caused by aspiration of mineral, vegetable, or animal oil present in food, radiologic contrast media, or oil based medications
- NECT will show low attenuation, mass-like consolidation, with regions of fat density
- crazy paving
REFERENCES
Gimenez A, Franquet T, Prats R, et al. Unusual primary lung tumors: a radiologic-pathologic overview. Radiographics 2002;22:601-19.
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