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• W2890693921 abstract "e15005 Background: The study discusses clinicopathological features of colorectal cancer with extranodal tumor deposits(ENTDs) and investigates whether ENTDs is a poor prognostic factor. Methods: 1. Clinicopathological data and follow-up of colorectal cancer with ENTDs who underwent surgery between June 2007 and June 2010 in seven hospitals in North China were collected retrospectively. Kaplan-Meier method was used for survival analysis. Cox proportional hazards model was used for multivariate analysis of prognostic factors. 2. The literatures on ENTDs and postoperative survival rate in colorectal cancer published from 1990 to 2016 were retrieved in English literature databases such as MEDLINE/PubMed, Web of Science and Chinese literature databases such as CNKI. Meta-analysis was conducted by Review Manager 5.3 software. Results: 1. A total of 253 cases of colorectal cancer with ENTDs were collected. The 5-year survival with only one ENTD was 49.2% (87/177), with median survival time 60 months. The 5-year survival with more than one ENTD was 17.1% (13/76), with median survival time 44 months. Cox regression analysis revealed that age, tumor size, number of ENTDs, N, m stage, surgical approach and adjuvant treatment were independent risk factors of prognosis of colorectal cancer with ENTDs. 2. The total sample size of the studies was 4731 cases with ENTDs (+) 917 cases. Meta analysis showed that: 5-year overall survival and 5-year relapse-free survival rate were significantly lower in ENTDs (+) group than ENTDs (-) group for colorectal cancer (OR:respectively 0.25,0.30; 95% CI:respectively 0.17-0.37,0.22-0.41; both P < 0.00001); 5-year overall survival rates were both significantly lower in ENTDs (+) group than ENTDs (-) group for patients with N0 and N+ colorectal cancer (N0 group: P = 0.003; N+ group: P = 0.0008; both P < 0.05). Conclusions: 1.Age, tumor size, number of ENTDs, N, m stage, surgical approach and adjuvant treatment were independent risk factors of prognosis of colorectal cancer with ENTDs. 2. ENTDs was a poor prognostic factor in colorectal cancer. The effect of ENTDs on postoperative survival rate might resemble that of between lymph node metastasis and distant metastasis." @default.
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• W2890693921 date "2017-05-20" @default.
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• W2890693921 title "Clinicopathological features and prognosis of colorectal cancer with extranodal tumor deposits." @default.
• W2890693921 doi "https://doi.org/10.1200/jco.2017.35.15_suppl.e15005" @default.
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