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PET, is a non-invasive radiological technique which measures the tissue perfusion, metabolic activity and viability by using tomographical images and quantitative parameters. PET/CT is progressively becoming on routine usage in head and neck cancer staging. PET/BT makes the cancer staging easier by whole body scaning, by characterisation of the lymph nodes accurately ad by showing the presence of head neck tumors. In this review we searched the importance of PET/CT at staging of head neck tumors. Key words: PET/CT, head and neck cancer, lymph node |
