高频超声内镜鉴别上消化道黏膜内癌及黏膜下癌

目的 探讨高频超声内镜鉴别上消化道黏膜内癌及黏膜下癌的价值.方法 129例上消化道早期癌患者术前行高频超声内镜检查,分析上皮内癌、黏膜肌层癌、黏膜下癌的超声影像学特征.34例行内镜下黏膜切除术,5例行内镜下黏膜下剥离术,90例行外科手术.术后标本行病理学检查确定其浸润深度.结果 高频超声内镜显示上皮内癌30例,黏膜上皮层增厚,黏膜肌层形态规则;黏膜肌层癌42例,36例黏膜层及黏膜肌层增厚,两层界限不清楚,黏膜下层形态规则,6例黏膜层及黏膜肌层增厚,黏膜下层部分稍增厚,形态规则;黏膜下癌57例,黏膜下层形态改变,变细8例,增粗6例,扭曲5例,不规则10例,部分中断12例,与黏膜肌层分界不清楚16例,固有肌层形态规则.术后病理:黏膜内癌78例,黏膜下癌51例.高频超声内镜判断黏膜内癌特异性为92.2%(47/51),敏感性为87.2%(68/78),黏膜下癌特异性为87.2%(68/78),敏感性为92.2%(47/51),其鉴别黏膜内癌及黏膜下癌准确性为89.1%(115/129).结论 高频超声内镜能较准确鉴别上消化道黏膜内癌及黏膜下癌.

Ultrasonic endoscopy in differentiating intramucosal carcinoma from submucosal carcinoma in the upper gastrointestinal tract

Objective To explore the value of ultrasonic endoscopy in discriminating intramucosal carcinoma from submucosal carcinoma in the upper gastrointestinal tract. Methods Preoperative ultrasonic endoscopy was performed in 129 cases with early cancers of the upper gastrointestinal tract. The ultrasonographic images of intraepithelial carcinoma,muscularis mucosae carcinoma,and submucosal carcinoma were analyzed. Endoscopic mucosal resection,endoscopic submucosal dissection,and surgical operation were performed in...