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Prognostic effect of lymph node micrometastasis in patients with histologically node-negative gastric cancer

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Abstract

Background

There is no consensus as to the impact of lymph node micrometastasis on survival of patients with gastric cancer. The aim of this study was to clarify the prognostic significance of lymph node micrometastasis in patients with histologically node-negative gastric cancer

Methods

Lymph nodes (n=2039) from 64 patients with histologically node-negative gastric cancer (T2, T3) were evaluated for micrometastasis. Three serial 5-μm sections of the resected lymph nodes were prepared for immunohistochemical staining with the anti-cytokeratin antibody CAM 5.2.

Results

Micrometastasis was found in 73 of 2039 nodes (4%) and 20 of 64 patients (32%). The 5-year survival rate was significantly lower for patients with lymph node micrometastasis than for those without lymph node micrometastasis (66% vs. 95%,P<.01). The 5-year survival rate was significantly lower when there were four or more positive micrometastatic nodes (94% vs. 29%,P <.01) and when there were extragastric micrometastatic nodes (89% vs. 53%,P<.01).

Conclusions

Lymph node micrometastasis was associated with poor outcome in patients with histologically node-negative gastric cancer. The number and the level of lymph node micrometastases are useful prognostic markers for deciding treatment strategies for additional therapy and follow-up.

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Authors and Affiliations

  1. Department of Surgery I, Oita Medical University, 1-1 Idaigaoka, Hasama-machi, 879-5593, Oita

    Kazuhiro Yasuda MD, Yosuke Adachi MD, Norio Shiraishi MD, Masafumi Inomata MD, Hiroaki Takeuchi MD & Seigo Kitano MD, FACS

Authors
  1. Kazuhiro Yasuda MD
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  2. Yosuke Adachi MD
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  3. Norio Shiraishi MD
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  4. Masafumi Inomata MD
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  5. Hiroaki Takeuchi MD
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  6. Seigo Kitano MD, FACS
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Correspondence to Kazuhiro Yasuda MD.

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Yasuda, K., Adachi, Y., Shiraishi, N. et al. Prognostic effect of lymph node micrometastasis in patients with histologically node-negative gastric cancer. Annals of Surgical Oncology 9, 771–774 (2002). https://doi.org/10.1007/BF02574499

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  • DOI: https://doi.org/10.1007/BF02574499

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