小肠间质瘤的多层螺旋CT诊断  

The diagnosis of the small-bowel stromal tumor in the multislice spiral computed tomography

作　　者：陈克敏[1] 朱晖[1] 唐永华[1] 董海鹏[1] 

机构地区：[1]上海交通大学医学院附属瑞金医院放射科,上海200025

出　　处：《诊断学理论与实践》2008年第1期38-41,共4页Journal of Diagnostics Concepts & Practice

摘　　要：目的:探讨小肠间质瘤的多层螺旋CT(MSCT)表现和特征。方法:35例经手术和病理证实的小肠间质瘤病例,对其CT增强前后影像资料进行回顾性分析。结果:35例经病理证实的小肠间质瘤病例中,恶性间质瘤20例,潜在恶性15例。间质瘤位于十二指肠7例,空肠16例,回肠12例,所有间质瘤均经CT检查检出。肿瘤最大径从1.5cm至16.7cm,平均为5.5cm。肿瘤大多边界清晰,以向腔外生长为主,肿瘤增强后可出现比较明显的强化。肿瘤边界清晰的占全部病例的91.4%(32/35),肿瘤以腔外生长为主的占80%(28/35),肿瘤出现中度强化以上的占94.3%(33/35)。结论:小肠间质瘤的CT表现具有一定的特征,MSCT检查对于检出肿瘤和明确部位,治疗前的综合评估以及治疗后的跟踪随访均具有重要意义。Objective To analyse the manifestation and the features of the small-bowel stromal tumor in the MSCT examination. Methods 35 cases with pathologically confirmed small-bowel stromal tumor were retrospectively reviewed and evaluated, all of the cases underwent plain scan CT and contrast enhanced CT. Results Out of 35 pathologically confirmed cases in our series, there were 20 malignant and 15 pre malignant cases. 7 lesions were located in the duodenum, 16 in the jejunum and 12 in the ileum. All lesions could be seen in the MSCT. The range of maximum diameters of tumors was from 1.5 cm to 16.7 cm. The mean maximum diameter was 5.5 cm. 32 lesions （91.4%） in our series had clear and well defined margin, 28 lesions（80%） were showed an extraluminal growth pattern, 33 lesions（94.3%） and showed marked enhancement after intravenous administration of iodinated contrast material. Conclusions MSCT manifestation of small bowel stormal tumor has some specific characteristics. MSCT examination plays an important role in the depiction and localization of the small-bowel stromal tumor, is very helpful in the pretherapeutic evaluation and post operative follow up.

关 键 词：小肠 间质瘤 多层螺旋CT 诊断 

分 类 号：R735.32[医药卫生—肿瘤]