Purpose
Selective endoscopie resection may cure early colorectal cancer (Tl), but the management is controversial. There is concern about the small risk of lymph node metastasis, which will not be treated by endoscopie resection alone. The authors sought predictive markers of lymph node metastasis to assist patient management. METHODS: The authors retrospectively analyzed consecutive cases of Tl stage colorectal cancer resected using endoscopie resection or bowel surgery over the period 1979 to 2000. The risk of lymph node metastasis was analyzed using logistic regression model for the markers selected by univariate analysis: the type of initial treatment, depth of submucosal invasion, lymphatic channel invasion, differentiation of histology, and invasive front histology. RESULTS: Two hundred seventy-eight patients were available for study. Twenty-one had lymph node metastasis. Depth of submucosal invasion (2 2,000 yum) and lymphatic channel invasion significantly predicted risk of lymph node metastasis in multivariate analysis. When these two factors were adopted for the prediction of lymph node metastasis, sensitivity, specificity, positive predictive value, and negative predictive value were 100, 55.6, 15.6, and 100 percent, respectively. CONCLUSIONS: Depth of submucosal invasion and lymphatic channel invasion were accurate predictive factors for lymph node metastasis. These two factors could be used in selecting appropriate cases for surgery after endoscopie resection.
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Poster presentation at meeting of the American Society of Colon and Rectal Surgeons, San Diego, California, June 2 to 7, 2001.
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Sakuragi, M., Togashi, K., Konishi, F. et al. Predictive factors for lymph node metastasis in t1 stage colorectal Carcinomas. Dis Colon Rectum 46, 1626–1632 (2003). https://doi.org/10.1007/BF02660767
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DOI: https://doi.org/10.1007/BF02660767