Clinicopathological Significance of Pathologic Complete Lymph Node Regression After Neoadjuvant Chemoradiotherapy in Esophageal Squamous Cell Carcinoma.

Pathologic complete LNR could be an indicator of nCRT sensitivity and can be regarded as a good prognostic factor in patients with ESCC. In the survival curve analysis that included patients with lymph node regression (LNR) scores of 0 (blue), 1 (red), and 2/3 (green), we found that patients with pathologic complete LNR (LNR 1), which suggests prior positive nodal involvement, had similar outcomes as those without evidence of prior tumor involvement in lymph node (LNR0).