The Japan Esophageal Society classification has been widely applied for predicting the invasion depth of superficial esophageal squamous cell carcinomas (SESCCs). Although Type B2 of the classification clinically corresponds to SESCCs with muscularis mucosa or slight submucosal invasion (MM/SM1), diagnostic yield based on Type B2 is insufficient. This study aimed to investigate risk factors for misdiagnosis in preoperative invasion depth staging.

中文翻译：

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食管癌浸润深度分期误诊的术前指标：窄带成像放大内镜的误诊

日本食管学会分类已广泛应用于预测浅表食管鳞状细胞癌（SESCCs）的浸润深度。尽管该分类的 B2 型在临床上对应于具有黏膜肌层或轻微黏膜下浸润 (MM/SM1) 的 SESCC，但基于 B2 型的诊断率不足。本研究旨在探讨术前浸润深度分期误诊的危险因素。