Incidence of microscopically positive proximal margins in adenocarcinoma of the gastroesophageal junction

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Abstract

Aim: To investigate the incidence and risk factors of microscopically positive proximal margins in Chinese patients with adenocarcinoma of the gastroesophageal junction. Methods: The medical records of 483 patients, who underwent surgical treatment with curative intent for adenocarcinoma of the gastroesophageal junction in a single high-volume tertiary medical center, were reviewed. Demographic, radiographic, endoscopic, pathologic, and treatment-related variables were evaluated. All proximal margins were reevaluated by two experienced pathologists, and a positive proximal margin was defined as the microscopic presence of invasive tumor cells seen at the esophageal transaction margin submitted en face on final paraffin sections. Results: The incidence of positive proximal margins was 23.81% in this series. Siewert type, depth of tumor invasion, lymph node involvement, presence of vascular or lymphatic invasion, and presence of perineural invasion were significantly associated with positive proximal margins. On multivariate analysis, the presence of vascular or lymphatic invasion and advanced-stage disease were independent risk factors for positive proximal margins in patients with adenocarcinoma of the gastroesophageal junction. Conclusion: Residual cancer at proximal resection margins remains a major issue for the surgical treatment of adenocarcinoma of the gastroesophageal junction in China. © 2014 Gao et al.

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Gao, F., Chen, J., Wang, T., Wang, G., Zhang, Z., & Shen, L. (2014). Incidence of microscopically positive proximal margins in adenocarcinoma of the gastroesophageal junction. PLoS ONE, 9(2). https://doi.org/10.1371/journal.pone.0088010

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