胃肠道间质瘤的影像诊断价值  

Imaging diagnostic value in gastrointestinal stromal tumors

作　　者：许健[1] 卢光明[1] 郑玲[1] 袁彩云[1] 陈鹏[1] 

机构地区：[1]南京军区南京总医院医学影像科,江苏南京210002

出　　处：《医学研究生学报》2006年第10期910-914,I0005,共6页Journal of Medical Postgraduates

基　　金：国家重点基础研究发展计划(973计划)基金资助项目(批准号:2006CB705707)

摘　　要：目的:探讨胃肠道间质瘤(G IST)的影像学特点及诊断价值。方法:回顾分析53例经手术和病理证实的G IST患者影像及临床资料。结果:病灶分布于食管1例,胃29例,小肠16例,大肠5例,胃肠道外2例。病理分型:良性G IST 14例,交界性10例,恶性26例,未确定3例。临床表现为消化道出血占38%(20/53),腹部不适及腹痛占36%(19/53)。主要影像学表现为黏膜下富含血供的肿块,境界清晰光整,外生性为主,肿块内出血、坏死、囊性变明显,局部淋巴结无转移。结论:G IST患者的影像学表现有一定的特征性,对准确定位、良恶性的判断、指导临床治疗和估计预后有重要价值。Objective ： To investigate the imaging features of gastrointestinal stromal tumors （GIST） and its diagnostic value. Methods：The clinical and imaging data of 53 patients with GIST proved by operation and pathology were analyzed. Results：Tumors located in esophagus in 1 cases,stomach in 29 cases, small bowel in 16 cases,colorectum in 5 cases and extra gastrointestinal sites in 2 cases. Immunohistochemical study diagnosed the GISTs as benign in 14 cases, intermediate in 10 cases and malignant in 26 cases. The common symptoms were gastrointestinal tract bleeding （20/53）, vague abdominal discomfort and abdominal pain （19/53）. The main imaging appearances included submucous hypervascular lesions with well-defined margins, predominating exophytic growth, obvious hemorrhage or necrosis and cystic changes within the mass and no metastases to local lymph nodes. Conclusion ： The imaging of GIST manifests some characteristics. It is valuable in localizing precisely, discriminating benign or malignantin, guiding clinical therapy and estimating prognosis for GIST.

关 键 词：胃肠道间质瘤 胃肠道双对比造影 计算机体层扫描 核磁共振成像 正电子发射型计算机断层扫描仪/计算机体层扫描 

分 类 号：R814.4[医药卫生—影像医学与核医学]