Comparison and validation of two proposed modifications to the current lymph node classification for esophageal squamous cell carcinoma.
BACKGROUND Accurate lymph node (LN) classification is crucial for prognostic evaluation and individualized management in esophageal squamous cell carcinoma (ESCC). METHODS We retrospectively analyzed 688 ESCC patients who underwent R0 resection without neoadjuvant therapy, dividing them into development (n = 461) and...