Union for international cancer control 9th edition TNM classification for head and neck malignancies: what is new?

Abstract

The 9th edition of the Union for International Cancer Control (UICC) tumor-nodemetastasis (TNM) classification of malignant tumors implements substantial, evidencebased revisions to the staging protocols for head and neck malignancies. Driven by the expanding evidence base and the imperative for refined prognostic stratification, these modifications ultimately aim to enhance the accuracy and clinical utility of the staging system within this complex anatomical region