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[Lymph node dissection for T1 esophageal cancer]

T Mitomi1, H Makuucuhi

  • 1Department of Surgery, Tokai University, School of Medicine, Isehara, Japan.

Nihon Geka Gakkai Zasshi
|November 25, 1997
PubMed
Summary

Esophageal cancer lymph node metastasis increases with tumor invasion depth. Early-stage cancers invading the submucosa have a 44.4% metastasis rate, requiring tailored lymph node dissection and treatment strategies.

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Area of Science:

  • Oncology
  • Gastroenterology
  • Surgical Pathology

Context:

  • Esophageal cancer staging and treatment depend on tumor invasion depth and lymph node metastasis.
  • Understanding lymphatic spread patterns is crucial for effective surgical planning and patient outcomes.

Purpose:

  • To analyze lymph node metastasis patterns in esophageal cancer based on tumor invasion depth.
  • To identify high-risk lymph node stations for metastasis in different esophageal cancer stages.
  • To guide lymph node dissection strategies and treatment decisions for esophageal cancer.

Summary:

  • Proper mucosal esophageal cancer rarely metastasizes to lymph nodes.
  • Submucosal esophageal cancer shows a 44.4% lymph node metastasis rate, increasing with invasion depth.
  • Metastasis spreads widely, with specific lymph node stations (e.g., 101L, 105, 106rR, 106rL, 108, 110, 1, 2, 3, 7) showing high involvement.
  • Upper thoracic tumors metastasize to cervical and upper mediastinal nodes; lower thoracic tumors to lower mediastinal and abdominal nodes.
  • Middle thoracic tumors require dissection in cervical, mediastinal, and abdominal regions, targeting specific lymph nodes.
  • Cancers limited to the proper mucosa or shallow submucosa may be treated with endoscopic mucosal resection.

Impact:

  • Informs precise lymph node dissection, potentially improving surgical outcomes and reducing recurrence.
  • Supports tailored treatment strategies, including endoscopic resection for early-stage disease.
  • Contributes to improved survival rates for T1 esophageal cancers, which show an 85.6% 5-year survival with surgical treatment.

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