Union for International Cancer Control 9thEdition TNM Classification for Head and Neck Malignancies: What is New?
Turkish Archives of Otorhinolaryngology, cilt.63, sa.4, ss.166-168, 2025 (ESCI, Scopus, TRDizin)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 63 Sayı: 4
- Basım Tarihi: 2025
- Doi Numarası: 10.4274/tao.2025.2025-11-14
- Dergi Adı: Turkish Archives of Otorhinolaryngology
- Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI), Scopus, TR DİZİN (ULAKBİM)
- Sayfa Sayıları: ss.166-168
- Anahtar Kelimeler: Head and neck neoplasms, neoplasm staging, prognosis, squamous cell carcinoma, TNM classification
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- Sağlık Bilimleri Üniversitesi Adresli: Hayır
Özet
The 9th edition of the Union for International Cancer Control (UICC) tumor-node-metastasis (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. Building on the major innovations introduced in the 8th edition—notably, the incorporation of depth of invasion for oral cavity cancers, extranodal extension (ENE) in nodal staging, and the establishment of distinct staging for human papillomavirus (HPV)-associated oropharyngeal carcinoma (OPC), the 9th edition further advances disease stratification across multiple key subsites (1,2). Collectively, these updates represent a deliberate and strategic evolution from a purely anatomical descriptive framework toward a hybrid prognostic model that integrates robust biological and morphological variables while rigorously maintaining global applicability. Despite anticipated implementation challenges, including variability in imaging quality, molecular testing availability, and interobserver reliability—the 9th edition provides a meaningful advancement in head and neck cancer staging. Its widespread adoption is expected to strengthen prognostic precision, improve treatment alignment, and enhance the comparability of clinical research across institutions. This commentary summarizes the notable modifications introduced in the 9th edition of the TNM classification for head and neck malignancies.