Intratumoral Lymphatic Vessel Involvement is an Invasive Indicator of Completely Resected Pathologic Stage I Non-small Cell Lung Cancer

Our analyses indicate lymphatic vessel involvement as an independent indicator of cancer invasiveness, surpassing the size-dependent tumor, node, metastasis staging system in pathologic stage I non-small cell lung cancer. Patients who would show survival benefits from adjuvant chemotherapy might be found by stratifying prognostic factors.