关键词: 淋巴结检出, 结直肠癌, 病理检查

Abstract: Objective To investigate the effect of an improved lymph node detection method in pathological examination of colorectal cancer after operation. Methods A modified method of lymph node detection was used to detect lymph nodes in 100 patients undergoing radical operation for colorectal cancer from November 2016 to February 2019 in the Anorectal Surgery Department of First People′s Hospital of Foshan. Results A total of 2303 lymph nodes were detected in 100 colorectal cancer surgical specimens by modified method， with an average of （23.03±10.94） lymph nodes per case， 178 positive lymph nodes （1.78±2.99） per case， 1138 lymph nodes （21.47±8.37） per case， 91 positive lymph nodes （1.72±2.82） per case， and 23 sigmoid colorectal cancer. There were 442 nodules with an average of （19.22±7.67） in each case； 43 positive lymph nodes with an average of （1.87±2.60） in each case； 130 lymph nodes with an average of （16.25±5.44） in 8 cases of descending colon cancer； 13 positive lymph nodes with an average of （1.63±1.77） in each case； 593 lymph nodes were detected in 16 cases of right colon cancer， with an average of （37.06±13.19） in each case； and 31 positive lymph nodes with an average of （37.06±13.19） in each case. Each case （1.94±4.42）. There were less than 12 lymph nodes detected in 7 cases of colorectal cancer after operation， which were 0/8 and 4/10 lymph nodes detected in 2 cases of descending colon cancer， 1/8， 1/9 and 0/10 lymph nodes detected in 3 cases of sigmoid colon cancer， and 0/6 and 1/11 lymph nodes detected in 2 cases of rectal cancer. Conclusion The improved lymph node de tection method， the high light direct vision method， was a feasible method for lymph node detection. It has the advantages of simple operation， no additional cost and easy popularization. It could meet the requirements of pathological staging.

Key words: colorectal cancer, lymph nodes detection, pathological examination