Abstract
Nodules with GGO components have been known as indolent tumors with a low risk of node metastasis, while occult lymph node metastasis (OLNM) is observed in 15-20% even in clinical stage I non-small cell lung cancer (NSCLC) with radiologically solid nodules. We aimed to evaluate predictive factors for occult lymph node metastasis (OLNM) in clinical stage IA NSCLC patients using a prospective observational cohort (OREX-1A: Optimal Extent of Pulmonary Resection in Clinical Stage IA Non-Small Cell Lung Cancer (NCT03066297)).
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