Submucosal Invasive Depth Predicts Lymph Node Metastasis and Poor Prognosis in Submucosal Invasive Esophageal Squamous Cell Carcinoma
Overview
Affiliations
Objectives: Lymph node metastasis (LNM) in submucosal invasive esophageal squamous cell carcinoma (SM-ESCC) is a prognostic factor. The aim of this study was to identify a histopathologic predictor of LNM in SM-ESCC.
Methods: In total, 108 patients who underwent an esophagectomy and lymph node dissection without preoperative therapy and who were pathologically diagnosed with SM-ESCC were enrolled in this study. Relationships between several clinicopathologic factors and LNM were examined.
Results: A multivariate analysis revealed that a tumor size of 35 mm or more (P = .0025), submucosal invasive depth (SID) of 2,000 μm or more (P = .013), and lymphatic infiltration (P < .0001) were significant independent predictors of LNM. In addition, there were significant differences in recurrence-free survival curves between patients with SID less than 2,000 μm or not (P = .029) and tumor size less than 35 mm or not (P = .049).
Conclusions: This study suggests that SID may predict not only LNM but also poor prognosis.
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