Cancer
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The purpose of this study was to evaluate the utility of positron emission tomography- (PET) 2-[18F]-fluoro-2-deoxy-D-glucose (FDG) imaging in extracranial head and neck cancers. ⋯ In this series, the authors found that PET-FDG is a useful diagnostic modality for evaluating the patient with an unknown primary, monitoring response to therapy, and in detecting recurrent tumors.