International Collaboration on Cancer Reporting

The protocol recommends the TNM staging system of the American Joint Committee on Cancer (AJCC) and the International Union Against Cancer (UICC) for nasal cavity and paranasal sinus cancer.1,31 Of note in the 7th edition of the AJCC staging of head and neck cancers1 is the division of T4 lesions into T4a (moderately advanced local disease) and ... ................
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