Methods: <br>1 Definition of Lymph Node index (LNi) The <br>lymph node index refers to the largest positive lymph node (ie, lymph node with metastasis of cancer cells) located in the lymph drainage area around the tumor during the pathological examination of the surgically resected malignant specimen The ratio of the largest diameter to the largest diameter of the largest negative lymph node (that is, the lymph node that is not accompanied by cancer cell metastasis).
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