结肠恶性肿瘤继发肠套叠CT诊断:附5例报告  

CT Diagnosis of Colonic Intussusception Secondary to Malignant Tumor

作　　者：袁国奇[1] 刘利明[1] 黄锦钊[1] 李清水[1] 刘海明[1] 

机构地区：[1]广东省中山市陈星海医院,广东中山528415

出　　处：《中国临床医学》2009年第4期624-625,共2页Chinese Journal of Clinical Medicine

摘　　要：目的:探讨结肠恶性肿瘤继发肠套叠的CT表现特点。方法:回顾分析5例结肠恶性肿瘤继发肠套叠CT平扫及增强表现。结果:平扫5例患者肠套叠近头端为偏心性靶征,头端为结肠实质肿块。4例伴有肠管壁不规则增厚。增强扫描肿块均明显强化,4例结肠腺癌呈不均匀强化,1例恶性淋巴瘤呈均匀性强化。套叠肠管内均见肠系膜脂肪及肠系膜血管,增强扫描肠系膜血管明显强化。结论:肠套叠近头端偏心性靶征及套叠肠管内见系膜脂肪和血管是结肠恶性肿瘤继发肠套叠的特征性CT表现。CT检查是结肠恶性肿瘤继发肠套叠较理想的诊断方法。Objective：To study the CT features of colonic intussusception secondary to malignant tumor in order to increase the awareness of the diagnosis of the disease. Methods：A retrospective study was carried out on five patients who were diagnosed with colonic intussusception secondary to malignant tumor. Their consecutive CT scans and contrast-enhanced CT scans were analyzed. Results：In the colonic intussusceptions of five patients, the eccentric target signs were shown on the near end and the colon tumors were shown on the end. The contrast-enhanced CT scan demonstrated that the colon tumors were significantly strengthened, where asymmetric enhancement of tumors was shown in four cases with colon cancer and symmetric enhancement of tumors was shown in five cases with malignant lymphoma. Four cases with colon cancer were shown with irregular thickening of intestinal wall. Five cases were shown with mesenterie fat and blood vessels inside the intussusception. The contrast-enhanced CT scan demonstrated that mesenteric blood vessels were significantly increased. Conclusion：CT scans presented significant features for colonic intussusception secondary to malignant tumor. Thus, CT examination is a suitable method for diagnosis of colonic intussusception secondary to malignant tumor.

关 键 词：肠套叠 结肠 恶性肿瘤 诊断 螺旋CT 

分 类 号：R814.42[医药卫生—影像医学与核医学]