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HOME > J Korean Cancer Assoc > Volume 33(2); 2001 > Article
Original Article
Prognostic Significance of Lymph Node Micrometastasis in pT2N0 Gastric Cancer
Hyeon Kook Lee, Sam Je Cho, Yoon Ho Kim, Hye Seung Lee, Woo Ho Kim, Kuhn Uk Lee, Kuk Jin Choe, Jin Pok Kim, Han Kwang Yang
Journal of the Korean Cancer Association 2001;33(2): 130-135.
1Department of Surgery, Seoul National University College of Medicine, Seoul, Korea.
2Department of Pathology, Seoul National University College of Medicine, Seoul, Korea.
3Department of Surgery, Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea.
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PURPOSE
The prognostic significance of lymph node (LN) micrometastasis in gastric cancer remains contro versial. We therefore investigated the clinicopathologic factors related to LN micrometastasis and evaluated the clinical relevance of micrometastasis with regard to urrence.
MATERIALS AND METHODS
A total of 1083 LNs from 39 patients with pT2N0 gastric cancer and who underwent curative resection in 1993 were further immunohistochemically stained using an anti-cytokeratin Ab cocktail (AE1-AE3).
RESULTS
Micrometastases were found in 3.9% (42/1083) of the resected LNs and 53.8% (21/39) of the patients with pT2N0 gastric cancer. LN micrometastasis was found to be significantly related with histologic differentiation. The recurrence rate of gastric cancer was higher in patients with LN micrometastasis (31.6%) than in those without (6.3%), with a borderline significance (p=0.074). In uni variate analysis, patients with LN micrometastasis had a shorter 5-year disease-free survival (65%) than those without LN micrometastasis (87%) (p=0.075). In multivariate analysis, multiple LN micrometastasis was associated with a poor prognosis, but with a borderline significance (p=0.069, Risk ratio 4.815) CONCLUSION: We were able to identify LN micrometastases missed on routine H-E staining, using an immuno histochemical technique. Our results suggest that LN micrometastasis is associated with the recurrence of pT2N0 gastric cancer.

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    Prognostic Significance of Lymph Node Micrometastasis in pT2N0 Gastric Cancer
    J Korean Cancer Assoc. 2001;33(2):130-135.
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