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目的探讨出血型小肠平滑肌肿瘤的临床特点及其诊断。方法回顾性病例分析。结果出血型小肠平滑肌肿瘤具有下列临床表现：（１）反复间隙性消化道出血。（２）大多数（８７９％）病人的年龄在４０岁以上。（３）位于空肠部位的肿瘤约为回肠的３倍。（４）消化道出血出现的时间和出血量与肿瘤的大小、性质无关。（５）术前病程一般较长。结论出血型小肠平滑肌肿瘤是下消化道出血最常见的病因之一。低张小肠灌钡、ＣＴ和选择性肠系膜上动脉造影是直接发现肿瘤征象的重要诊断手段
Objective To investigate the clinical features and diagnosis of hemorrhagic intestinal smooth muscle tumors. Methods Retrospective case analysis. Results Hemorrhagic intestinal smooth muscle tumors had the following clinical manifestations: (1) Repeated intermittent gastrointestinal bleeding. (2) Most (87.9%) patients were over 40 years of age. (3) The tumor located in the jejunum area is approximately 3 times that of the ileum. (4) The time and blood loss of gastrointestinal hemorrhage have nothing to do with the size and nature of the tumor. (5) The preoperative course is usually longer. Conclusion Hemorrhagic intestinal smooth muscle tumor is one of the most common causes of lower gastrointestinal bleeding. Low-tension small bowel irrigation, CT and selective superior mesenteric artery angiography are important diagnostic tools for direct detection of tumor signs