[Expert consensus on lymph node dissection for intrahepatic cholangiocarcinoma(2025)]

Intrahepatic cholangiocarcinoma (ICC) is a highly aggressive malignant tumor with poor prognosis, and lymph node metastasis constitutes one of the critical risk factors contributing to unfavorable patient outcomes. Lymph node dissection holds significant value in accurately staging ICC, guiding prognostic evaluation, and determining adjuvant therapeutic strategies. In recent years, both domestic and international scholars have conducted extensive research on lymph node metastasis and dissection in ICC. However, discrepancies persist among various research findings and consensus guidelines domestically and internationally regarding the understanding and recommendations for lymph node dissection in ICC. Furthermore, substantial variations exist in the extent of lymph node dissection, the minimum number of lymph nodes required for retrieval, and surgical dissection techniques, which have consequently led to divergent research conclusions. To standardize the clinical practice of lymph node dissection for ICC in China and enhance the level of ICC diagnosis and treatment, the Branch of Biliary Surgery, Chinese Society of Surgery, Chinese Medical Association and Working Group of Biliary Surgeons, Chinese College of Surgeons, Chinese Medical Doctor Association, convened relevant experts to develop this expert consensus. This consensus document has been formulated based on the latest evidence-based medical research and accumulated clinical experience.