Prognostic Significance of Surgical-Pathologic N1 Lymph Node Involvement in Non-Small Cell Lung Cancer

Abstract

Background. Patients with N1 non-small cell lung cancer represent a heterogeneous population with varying long-term survival. To better define the importance of N1 disease and its subgroups in non-small cell lung cancer staging, we analyzed patients with N1 disease using the sixth edition and proposed seventh edition TNM classifications.