Assessment of non-lobe-specific lymph node metastasis in clinical stage IA non-small cell lung cancer: Non-lobe-specific lymph node metastasis

Background The rationality of selective mediastinal lymph node dissection based on lobe‐specific metastasis is still controversial. The correlation of lymph node metastasis in lobe‐specific lymphatic drainage regions (LSDRs) and non‐LSDRs has not been widely reported. The purpose of this study was to investigate the variables affecting nodal metastasis in non‐LSDRs and to further evaluate the rationality of selective lymphadenectomy in clinical stage IA non‐small cell lung cancer (NSCLC) patients.