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Updated: Oct 3, 2025

DIPLOMA Approach for Standardized Pathology Assessment of Distal Pancreatectomy Specimens
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Optimal lymph-node dissection for pancreatic tail cancer.

Shingo Seo1, Kenichiro Uemura2, Tatsuaki Sumiyoshi1

  • 1Department of Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan.

Surgery Today
|February 19, 2022
PubMed
Summary

Lymph node dissection for pancreatic tail cancer may not require extensive lymphadenectomy. Dissection at stations 7, 8, and 9 appears unnecessary for resectable pancreatic tail tumors.

Keywords:
Distal pancreatectomyPancreatic ductal carcinomaTumor metastasis

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Area of Science:

  • Surgical Oncology
  • Gastroenterology
  • Pathology

Background:

  • The extent of lymph node dissection for pancreatic tail cancer is not well-defined.
  • Identifying the precise lymph node regions involved is crucial for optimizing surgical treatment.

Purpose of the Study:

  • To investigate the location and frequency of lymph node metastases in pancreatic tail cancer.
  • To determine the appropriate range of lymph node dissection for this specific cancer type.

Main Methods:

  • Retrospective analysis of clinical data from patients undergoing distal pancreatectomy for resectable left-sided pancreatic cancer (2006-2021).
  • Patients were categorized into pancreatic tail cancer (Pt group) and pancreatic body/body and tail cancer (non-Pt group) based on tumor location.

Main Results:

  • Metastases to lymph node stations 7, 8, and 9 were absent in the pancreatic tail cancer group (Pt group).
  • In the Pt group, metastases were observed in stations 10 (7%), 11 (30%), 14 (4%), and 18 (17%).
  • The non-Pt group showed metastases in stations 7 (3%), 8 (12%), 9 (6%), 10 (3%), 11 (51%), 14 (9%), and 18 (17%).

Conclusions:

  • Lymph node dissection at stations 7, 8, and 9 may not be necessary for resectable pancreatic cancer confined to the pancreatic tail.
  • These findings suggest a potentially less extensive lymphadenectomy approach for select pancreatic tail cancer cases.