Validation for revision of the stage IIIA(T1N2) in the forthcoming ninth edition of the TNM classification for lung cancer.

ABSTRACT:

Objectives

The 9th edition of the lung cancer tumor-node-metastasis (TNM) staging system downgrades certain non-small cell lung cancer (NSCLC) patients from stage IIIA (T1N2) to IIB(T1N2a). This study aimed to externally validate this stage adjustment.

Methods

Consecutive resected stage IIB and IIIA (the 9th edition of lung cancer TNM staging manual) NSCLC patients were included. Stage IIB was divided into groups A, B, and C according to lymph node involvement. Group A, patients who having single-station N2 without N1 involvement; Group B, patients who having single-station N2 with N1 involvements; Group C, patients who having station N1 involvement or N0. The stage IIIA patients divided into Group D. Overall survival (OS) and disease-free survival (DFS) were compared using

SUBMITTER: Wu T 

PROVIDER: S-EPMC11905661 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature