AIM: Most patients with stage I and stage II colon adenocarcinomas do not have disseminated disease, and the group is not offered adjuvant therapy. However, more than 30% of stage II colon adenocarcinoma patients get metastases to remote organs. Thus, it is important to identify patients in this group at risk of disease relapse. PATIENTS AND METHODS: We have examined the prognostic value of isolated tumour cells (ITC) in mesenteric lymph nodes in a consecutive series of 156 colon carcinoma patients with stage II disease. Immunohistochemistry, using antibodies to cytokeratins, and morphology were used to identify presence of ITC. RESULTS: ITC were detected in 59 (37.8%) patients. Presence of ITC in mesenteric lymph nodes was independently associated with reduced relative survival both in univariate (p=0.0199) and in a multivariate analysis (p=0.041). CONCLUSION: The results strongly suggest that presence of ITC in mesenteric lymph nodes is associated with reduced relative survival in colon carcinoma patients stage II, and that detection of ITC may be important in treatment of these patients.
AIM: Most patients with stage I and stage II colon adenocarcinomas do not have disseminated disease, and the group is not offered adjuvant therapy. However, more than 30% of stage II colon adenocarcinomapatients get metastases to remote organs. Thus, it is important to identify patients in this group at risk of disease relapse. PATIENTS AND METHODS: We have examined the prognostic value of isolated tumour cells (ITC) in mesenteric lymph nodes in a consecutive series of 156 colon carcinomapatients with stage II disease. Immunohistochemistry, using antibodies to cytokeratins, and morphology were used to identify presence of ITC. RESULTS: ITC were detected in 59 (37.8%) patients. Presence of ITC in mesenteric lymph nodes was independently associated with reduced relative survival both in univariate (p=0.0199) and in a multivariate analysis (p=0.041). CONCLUSION: The results strongly suggest that presence of ITC in mesenteric lymph nodes is associated with reduced relative survival in colon carcinomapatients stage II, and that detection of ITC may be important in treatment of these patients.
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