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. 2025 Aug 12;15:1590133. doi: 10.3389/fonc.2025.1590133

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Copyright © 2025 Zhang, Du, Li, Xue and Zhu.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Two Kaplan-Meier survival plots compare survival times between different treatment groups. Plot (a) shows groups with less than fifteen RLNs, and plot (b) shows groups with fifteen or more RLNs. In both plots, the curves represent PT-only, PT+EP, N0, and Skip groups, with respective survival rates over time. Statistical significance is noted for Skip vs. other groups, with p-values provided. — Overall survival of each status of lymph node metastasis with Kaplan–Meier curves: (a) for overall stage with RLNs <15, (b) for overall stage with RLNs ≥15. EP, extraperitumoral; PT, peritumoral; RLNs, retrieved lymph nodes.