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KMID : 0371319960510040533
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Journal of the Korean Surgical Society
1996 Volume.51 No. 4 p.533 ~ p.538
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Clinical Significance of Mean Number of Lymph Nodes in Colorectal Carcinoma Specimens
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Abstract
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Dukes' classification remains the single most important factor when considering the prognosis in colorectal cancer. To determine the effect of adjuvant therapy in colorectal carcinoma it is important to distinguish accurately a Dukes' B from a
Dukes' C
tumor. Two hundred and eighty-nine colorectal carcinoma specimens were examined to determine the number of dissected lymph nodes according to the site. The mesorectum or mesocolon was dissected by traditional methods and all the lymph nodes were
examined histologically. The mean number of nodes found in the specimens from the ascending colon was 14.5, 13.3 from the transverse colon. 10.3 from the desending colon, 12.4 from the sigmoid colon and 13.1 from the rectum. The mean number of
nodes
found in specimens was 11.6 from the Dukes' B tumors and 12.2 from the Dukes' C tumors. The positive rate of lymph node in patients with less than 5 lymph nodes was 36.2% and 55% in patients with more than 6 lymph nodes. We report the number of
lymph
nodes found in specimens from the colorectal cancer and we suggest that the positive rate of lymph node was higher in patients with more dissected lymph nodes.
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KEYWORD
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