Pattern of FDG-PET uptake in lipoid pneumonia simulating lung cancer

Lipoid pneumonia presents with a variety of lung abnormalities, particularly mass forming lesions that mimic lung cancers. While 18F-fluorodeoxyglucose (FDG)-positron emission tomography (PET) is expected to discriminate both diseases, some previous reports showed pseudo-positive FDG uptake in lipoi...

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Bibliographic Details
Published inRespiratory medicine case reports Vol. 31; p. 101255
Main Authors Nakagawara, Kensuke, Sasaki, Mamoru, Morinaga, Shojiroh, Minematsu, Naoto
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.01.2020
Elsevier
Subjects
Case Report
Computed tomography
Lipoid pneumonia
Positron emission tomography
Computed tomography
Positron emission tomography
Lipoid pneumonia
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Summary:Lipoid pneumonia presents with a variety of lung abnormalities, particularly mass forming lesions that mimic lung cancers. While 18F-fluorodeoxyglucose (FDG)-positron emission tomography (PET) is expected to discriminate both diseases, some previous reports showed pseudo-positive FDG uptake in lipoid pneumonia. Here, we report a case of pathologically proven chronic lipoid pneumonia in a 78-year-old Japanese man. Computed tomography (CT) showed multi-lobar mass-forming lesions with a fat-density. PET confirmed the spotty accumulation of FDG in the corresponding fat-density area on CT, suggesting lipoid pneumonia. We reviewed the literature and discussed the FDG uptake patterns in lipoid pneumonia.
ISSN:2213-0071
2213-0071
DOI:10.1016/j.rmcr.2020.101255