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Lymph node staging in colorectal cancer:Old controversies and recent advances

World Journal of Gastroenterology 2013年第46期19卷 8515-8526页

作者： Annika Resch Cord Langner Institute of Pathology Medical University of Graz

Outcome prediction based on tumor stage reflected by the American Joint Committee on Cancer(AJCC)/Union for International Cancer Control(UICC)tumor node metastasis(TNM)system is currently regarded as the strongest prognostic parameter for patients with colorectal *** affected patients,the indication for adjuvant therapy is mainly guided by the presence of regional lymph node *** addition to the extent of surgical lymph node removal and the thoroughness of the pathologist in dissecting the resection specimen,several parameters that are related to the pathological work-up of the dissected nodes may affect the clinical significance of lymph node *** include changing definitions of lymph nodes,involved lymph nodes,and tumor deposits in different editions of the AJCC/UICC TNM system as well as the minimum number of nodes to be *** to increase the lymph node yield in the fatty tissue include methylene blue injection and acetone *** prediction based on the lymph node ratio,defined as the number of positive lymph nodes divided by the total number of retrieved nodes,may be superior to the absolute numbers of involved *** invasion has been identified as additional prognostic *** step sectioning and immunohistochemistry to the pathological work-up may result in higher accuracy of histological *** clinical value of more recent technical advances,such as sentinel lymph node biopsy and molecular analysis of lymph nodes tissue still remains to be defined.

关键词： Colon cancer Rectum cancer Tumor stag-ing Lymph node metastasis Prognosis Sentinel lymph node Lymph node ratio Extracapsular invasion Im-munohistochemistry Molecular analysis

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