Objective To report and evaluate the diagnostic value of endoscopic ultrasonography (EUS) in the lesions of upper gastrointestinal tract.
目的报告和评价超声内镜（EU S）对上消化道病变的诊断价值。
EUS is valuable and safe for the diagnosis of ectopic pancreas in upper gastrointestinal tract. Depth of lesions revealed by EUS can help further treatment.
超声内镜对上消化道异位胰腺有重要的诊断价值，并可根据超声内镜所显示的病变深度决定下一步治疗，内镜下治疗是安全有效的。
EUS is valuable and safe for the diagnosis of ectopic pancreas in upper gastrointestinal tract. Depth of lesions revealed by EUS can help further treatment.
超声内镜对上消化道异位胰腺有重要的诊断价值，并可根据超声内镜所显示的病变深度决定下一步治疗，内镜下治疗是安全有效的。
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