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238 patients with early gastric cancer underwent sentinel lymph node biopsy and pelvic dissection, with 30 identified as having lymph node metastasis. The data, authored by Huiliang Zhang and last updated in April 2026, originates from a retrospective analysis of prospectively collected data at a tertiary hospital. It focuses on the failure rate of intraoperative frozen section identification and the incidence of metastasis in non-sentinel lymph nodes.
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