What are the radiologic findings for Dx of exogenous lipoid pneumonia?

The Bottom Line: High-resolution computed tomography (HRCT) is the best imaging modality for the diagnosis of lipoid pneumonia. The most characteristic CT finding in LP is the presence of negative attenuation values within areas of consolidation.

Reference: Marchiori E, Zanetti G, Mano CM, Hochhegger B.  Exogenous lipoid pneumonia. Clinical and radiological manifestations.  Respir Med. 2011 May;105(5):659-66. 

Summary: The diagnosis of exogenous lipoid pneumonia is based on a history of exposure to oil, characteristic radiological findings, and the presence of lipid-laden macrophages on sputum or BAL analysis.

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