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- W4237061645 abstract "44 Background: Extra mural venous invasion (EMVI) is known as an adverse prognostic indicator of survival and an important predictor of systemic recurrences in colorectal carcinoma. However, the incidence and significance of EMVI in esophageal cancer (EC) have not been studied well. Aim: To estimate the incidence and the prognostic significance of EMVI in pathological stage T3-4 EC resection specimens without neoadjuvant chemoradiotherapy (nCRT) Methods: From a prospective maintained database we retrospectively review the resected specimens of patients with an EC. For adequate EMVI assessment we only included patients without nCRT and excluded patients without previous malignancies and patients with cardia/gastroesophageal junction tumors. A total of 76 patients were included between 2000 and 2012. EMVI was assessed on haematoxylin and eosin slides and for confirmation additional Elastica van Gieson staining was performed. Disease free survival was analyzed using a multivariable logistic regression and Kaplan-Meier method. Results: Evidence of EMVI was found in 18 patients (23.7%). The incidence of EMVI was significantly higher in squamous cell carcinomas (p < 0.05) and among tumors located in the mid-esophagus (p < 0.05). In the univariate analysis, pathological N- stage (HR 3.6 95%Cl: 1.5-8.5; p = 0.004) and positive circumferential resection margin (CRM) (HR 2.3 95% Cl: 1.2-4.5 p = 0.015) were independent prognostic factors. By stepwise multivariate Cox regression analysis, pathological tumor length (HR 2.5 95%Cl: 1.0-6.5 p = 0.05), pathological N- stage (HR 2.7 95%Cl: 1.3-6.2 p = 0.008), positive CRM (HR 2.3 95% Cl: 1.2-4.5 p = 0.009) and EMVI (HR 2.2 95% Cl: 1.0-4.5 p = 0.04) were shown to be independent prognostic factors for disease free survival. Conclusions: A search for EMVI may provide additional prognostic information in esophageal cancer, especially in squamous cell carcinoma." @default.
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- W4237061645 date "2017-02-01" @default.
- W4237061645 modified "2023-09-27" @default.
- W4237061645 title "Incidence and prognostic significance of extramural venous invasion in T3-4 esophageal cancer." @default.
- W4237061645 doi "https://doi.org/10.1200/jco.2017.35.4_suppl.44" @default.
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