ASO Author Reflections: Optimal Region of Lymph Node Dissection in Distal Pancreatectomy for Pancreatic Cancer Based on Tumor Location: Should We Dissect Non-Peripancreatic Lymph Nodes for all Left-Sided Pancreatic Cancer Patients?

Abstract Background D3 or complete mesocolic excision (CME) surgery has become a common surgical procedure for the treatment of colon cancer metastasis. Clinical misuse and overuse of lymph node dissection bring unnecessary burdens to patients. A detailed guidance for lymph node dissection in patients with T3 and T4 stage right colon cancer at different locations is urgently needed. Methods A retrospective study was performed. Patients received D3 or CME surgery were divided into ileocecal group, ascending colon group, and hepatic flexure group according to the 9th edition of the Japanese Society for Cancer of the Colon and Rectum guidelines. The distributions of lymph node metastases were analyzed according to tumor infiltration depth (T stage) and tumor location. Results The incidence of metastases in the paracolic area (or station), intermediate area, and main (or central) area was 38.4% (139/362), 12.7% (46/362), and 9.7% (35/362), respectively. The proportion of patients having No.206 and terminal ileum lymph nodes metastases was 7.7% (14/181) and 3.7% (9/244), respectively. No.206 lymph node metastasis is related to tumor location (χ2 = 7.955, p = 0.019) and degree of differentiation (χ2 = 18.99, p = 0.000), and terminal ileum lymph node metastasis is related to tumor location (χ2 = 6.273, p = 0.043). Patients with T3/T4 hepatic flexure cancer received radical right hemicolectomy in addition to No.206 lymph node dissection. Conclusion Radical right hemicolectomy and No.206 group lymph node dissection are necessary for T3 and T4 stage colon cancer therapy.

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The Prognostic Significance of Isolated Tumor Cells Detected Within Lateral Lymph Nodes in Rectal Cancer Patients After Laparoscopic Lateral Lymph Node Dissection

Journal of Laparoendoscopic & Advanced Surgical Techniques ◽

10.1089/lap.2019.0489 ◽

2019 ◽

Vol 29 (11) ◽

pp. 1462-1468

Author(s):

Xuyang Yang ◽

Tao Hu ◽

Chaoyang Gu ◽

Shuo Yang ◽

Dan Jiang ◽

...

Keyword(s):

Rectal Cancer ◽

Lymph Node ◽

Lymph Nodes ◽

Cancer Patients ◽

Tumor Cells ◽

Lymph Node Dissection ◽

Prognostic Significance ◽

Node Dissection ◽

Isolated Tumor Cells ◽

Lateral Lymph Node

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Intercostobrachial Nerves as a Novel Anatomic Landmark for Dividing the Axillary Space in Lymph Node Dissection

ISRN Oncology ◽

10.1155/2013/279013 ◽

2013 ◽

Vol 2013 ◽

pp. 1-7 ◽

Cited By ~ 1

Author(s):

Jianyi Li ◽

Yang Zhang ◽

Wenhai Zhang ◽

Shi Jia ◽

Xi Gu ◽

...

Keyword(s):

Breast Cancer ◽

Lymph Node ◽

Lymph Nodes ◽

Cancer Patients ◽

Lymph Node Dissection ◽

Sentinel Lymph Nodes ◽

Breast Cancer Patients ◽

Node Dissection ◽

Anatomic Landmark ◽

New Information

Purpose. Our aim was to assess the feasibility of using the intercostobrachial nerves (ICBNs) as a possible new anatomic landmark for axillaries lymph node dissection in breast cancer patients. Background Data Summary. The preservation of ICBN is now an accepted procedure in this type of dissection; however, it could be improved further to reduce the number of postoperative complications. The axillary space is divided into lower and upper parts by the ICBN—a thorough investigation of the metastasis patterns in lymph nodes found in this area could supply new information leading to such improvements. Methods. Seventy-two breast cancer patients, all about to undergo lymph node dissection and with sentinel lymph nodes identified, were included in this trial. The lymph nodes were collected in two groups, from lower and upper axillary spaces, relative to the intercostobrachial nerves. The first group was further subdivided into sentinel (SLN) and nonsentinel (non-SLN) nodes. All lymph nodes were tested to detect macro- and micrometastasis. Results. All the sentinel lymph nodes were found under the intercostobrachial nerves; more than 10 lymph nodes were located in that space. Moreover, when lymph nodes macrometastasize or micrometastasize above the intercostobrachial nerves, we also observe metastasis-positive nodes under the nerves; when the lower group nodes show no metastasis, the upper group is also metastasis free. Conclusions. Our results show that the intercostobrachial nerves are good candidates for a new anatomic landmark to be used in lymph node dissection procedure.

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