A 48-year-old man with a history of adenoid cystic carcinoma (ACC) of the nasopharynx, eight years after radio-chemotherapy, fluorine-18-fluorodeoxyglucose positron emission tomography/computed tomography (F-FDG PET/CT) was performed for follow-up. A lobulated mass with moderate and heterogeneous F-FDG uptake in the right kidney was observed, which was pathologically proven as ACC metastasis.
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