False-Positive Finding on 18F FDG PET/CT: Report of a Rare Case With Xanthogranulomatous Inflammation in the Spinal Epidural Space

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Xanthogranulomatous inflammation in the spinal epidural space is extremely rare. We report a case of a 62-year-old man with a xanthogranulomatous inflammation in the spinal epidural space mistaken for lymphoma because of its avid 18F FDG uptake on PET/CT. This case emphasizes the need for caution when evaluating a spinal epidural mass using 18F FDG PET/CT as xanthogranulomatous inflammation can induce a false-positive reading on 18F-FDG PET/CT.

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