The science behind the 7th edition Tumour, Node, Metastasis staging system for lung cancer
The Tumour, Node, Metastasis (TNM) system for classifying lung cancer is the cornerstone of modern lung cancer treatment and underpins comparative research; yet is continuously evolving through updated revisions.
The recently published Union for International Cancer Control 7th Edition TNM Classification for lung cancer addresses many of its predecessor's shortcomings and has been subject to rigorous evidence‐based methodology. It is based on a retrospective analysis of over 80000 lung cancer patients treated between 1990 and 2000 carried out by the International Association for the Study of Lung Cancer.
The dataset was truly international and included patients treated by all modalities. Extensive internal and external validation of the findings has ensured that the recommenda...