Pattern of FDG-PET uptake in lipoid pneumonia simulating lung cancer. (2020)

• Record Type: Journal Article
• Authors: Nakagawara, Kensuke; Sasaki, Mamoru; Morinaga, Shojiroh; Minematsu, Naoto
• Is Part Of: Respiratory medicine case reports. Volume 31(2020)
• Publication Date: 2020
• Subjects: Computed tomography -- Lipoid pneumonia -- Positron emission tomography; Respiratory organs -- Diseases -- Periodicals; Chest -- Diseases -- Periodicals; Respiratory Tract Diseases -- Periodicals; Respiratory System -- Periodicals; Chest -- Diseases; Respiratory organs -- Diseases; Electronic journals; Periodicals; 616.2
• DOI: 10.1016/j.rmcr.2020.101255
• Languages: English
• ISSNs: 2213-0071

Abstract

Abstract: Lipoid pneumonia presents with a variety of lung abnormalities, particularly mass forming lesions that mimic lung cancers. While 18 F-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.