Increased lymph node yield in colorectal cancer is not necessarily associated with a greater number of lymph node positive cancers.

However in the current data set while there is a significant trend to increase lymph node yield this has not been reflected in an increasing proportion of Dukes C cases even when the confounding factors of neoadjuvant therapy and bowel cancer screen detected cases have been excluded from the analysis.

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Introduction Detection of metastasis in tumour-associated lymph nodes has a highly significant effect on prognosis in patients with colorectal cancer.

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