• Xiang-Nan Ai, Qiang Zhang, Chang-Guo Jin, Hao Hu, Wen-Xuan Zhang, Zhen-Yu Wu, and Dian-Rong Xiu.
• Department of Hepatobiliary Surgery, Aerospace Center Hospital, Beijing, China.
• Medicine (Baltimore). 2024 Feb 9; 103 (6): e37038e37038.

AbstractColorectal cancer (CRC) remains a significant global health concern, as characterized by its high mortality rate ranking second among all the leading causes of death. The liver serves as the primary site of CRC metastasis, and the occurrence of liver metastasis is a significant contributor to mortality among patients diagnosed with CRC. The survival rate of patients with colorectal liver metastasis has significantly increased with the advancement of comprehensive tumor therapy. However, radical surgery remains the key factor. Since there are frequently multiple liver metastases, which are prone to recurrence after surgery, it is crucial to preserve as much liver parenchyma as possible without affecting the prognosis. The issue of surgical margins plays a crucial role in this regard. In this review, we begin by examining the occurrence of positive surgical margins in liver metastases of patients diagnosed with CRC. We aim to define positive margins in hepatic surgery, examine the relationship between margins and prognosis and establish a foundation for future research in this field.Copyright © 2024 the Author(s). Published by Wolters Kluwer Health, Inc.

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