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探讨内镜超声（ｅｎｄｏｓｃｏｐｉｃ ｕｌｔｒａｓｏｎｏｇｒａｈｐｙ，ＥＵＳ）微探头检查对消化道良、恶性肿瘤的诊断价值。方法：用ＥＵＳ微探头检查了２９ 例拟诊消化道肿瘤的患者。结果：ＥＵＳ诊断食管平滑肌瘤（ＳＭＴ）２ 例，胃底ＳＭＴ３ 例，胃底脾脏压迫、胃窦胆囊压迫、胃溃疡和胃肠吻合口炎各１ 例，胃癌４ 例，结直肠癌１１ 例，大肠息肉５ 例。结论：ＥＵＳ微探头能清楚地显示出消化管壁的各层结构、病变的起源、性质和浸润的深度。三腔单水囊管储水好，使ＥＵＳ的图像更加清晰
To investigate the diagnostic value of endoscopic ultrasonograhpy (EUS) microprobe examination for benign and malignant gastrointestinal cancers. METHODS: Twenty-nine patients with suspected digestive tract tumors were examined with an EUS microprobe. Results: EUS diagnosed 2 cases of esophageal leiomyoma (SMT), 3 cases of gastric fundus SMT, gastric spleen oppression, gastric antrum gallbladder oppression, gastric ulcer and gastrostomy anastomotic inflammation in 1 case, gastric cancer in 4 cases, colorectal cancer in 11 cases 5 cases of colorectal polyps. Conclusion: The EUS microprobe can clearly show the structure of the layers of the digestive tract, the origin, properties of the lesion, and the depth of infiltration. Three-chamber single-tube water tube is good for water storage, making EUS images clearer