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Increased FDG Uptake and Chronic Lung Changes in a Case of Persistent Lipoid Pneumonia

Ansari-Gilani, Kianoush, MD; Faraji, Navid, MD; Gilkeson, Robert C., MD

doi: 10.1097/RLU.0000000000002299
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Lipoid pneumonia is uncommon disease caused by presence of macroscopic fat in the lung parenchyma commonly originating from exogenous source secondary to aspiration or inhalation of animal fats or mineral or vegetable oils. Alternatively, it can be due to endogenous fat accumulated in the alveoli in the setting of chronic bronchial obstruction or inflammation. The imaging findings include ground-glass opacities, consolidation, nodules, and masses. Presence of macroscopic fat on CT is helpful; however it might not always be present. Increased FDG uptake can be present secondary to ongoing inflammation mimicking malignancy. Tissue diagnosis might be needed in some cases.

From the Department of Diagnostic Radiology, University Hospitals Cleveland Medical Center, Cleveland, OH.

Received for publication July 24, 2018; revision accepted August 25, 2018.

Conflicts of interest and sources of funding: none declared.

Correspondence to: Kianoush Ansari-Gilani, MD, Department of Radiology, University Hospitals Cleveland Medical Center, 11100 Euclid Avenue, Cleveland, OH 44106. E-mail: kianoush.ansarigilani@uhhospitals.org.

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