FDG-Avid Liver Lesion on PET/CT: What Is Your Differential?

A PET/CT for a pulmonary nodule reveals an unexpected FDG-avid focus adjacent to the right hepatic lobe. Four-phase CT is obtained to narrow the differential. What is your top diagnosis and the key imaging clue?

• Interactive imaging case from UC Davis Radiology designed for radiology trainees and practicing radiologists.
• Focuses on the differential diagnosis and imaging clues of an FDG-avid liver lesion, integrating PET/CT and multiphase CT findings.

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