Diagnostic evaluation should include a thorough physical examination, CT and/or MRI of the head and neck, and panendoscopy with directed biopsies. Unilateral or bilateral tonsillectomy should be performed on patients with adequate lymphoid tonsillar tissue. FDG-PET or FDG-PET/CT should be considered for those with indeterminate findings on physical examination and/or head and neck CT and/or MRI if those sites are located outside of the oropharynx.
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