胃肠道间质瘤CT影像学诊断特点分析

Imaging characteristics of CT diagnosis of gastrointestinal stromal tumors

目的 探讨CT诊断胃肠道间质瘤的临床效果.方法 选取驻马店市中心医院2013年1月至2014年12月收治的20例胃肠道间质瘤患者,均采用CT影像学进行诊断,回顾性分析其临床资料.结果 20例患者中共有肿块25个,结肠4个,小肠12个,胃及十二指肠9个.有清楚的肿瘤边界,术前定位准确11例;直接对周边器官造成侵犯,与邻近结构明显粘连,边界不清,术前定位错误或不确定9例.转移4例,其中肠系膜转腹水2例,肝转移2例.本组CT对胃肠道间质瘤诊断9例,其他11例按肉瘤、异位嗜铬细胞瘤、胃泌素瘤误诊,诊断为种类未明的腹部肿瘤或胃外肿块.本组良性5例,恶性15例.结论 胃肠道间质瘤采用CT诊断有较高的价值,可对其他临床影像学检查存在的局限性加以弥补,对早期诊治及预后评估有非常重要的参考价值,值得推广应用.

Objective To investigate the clinical results of CT diagnosis of gastrointestinal stromal tumor.Methods The clinical data of 20 gastrointestinal stromal tumor patients from January 2013 to December 2014 who were diagnosed by CT were retrospectively analyzed.Results There were 25 tumors in 20 patients, 4 tumors in colon, 12 tumors in small intestine and 9 tumors in stomach and duodenum.Eleven cases had a clear tumor boundaries and accurate localization preoperative;direct result infringe on the surrounding organs, and adjacent structures obvious adhesions, with obscure boundary, localization error or uncertainty preoperative in 9 cases.Two cases of mesenteric turn ascites, 2 cases of hepatic metastases.Nine cases of GIST were diagnosed by CT, the other 11 cases were misdiagnosed with sarcoma,ectopic pheochromocytoma, gastrinoma misdiagnosis, abdominal tumors of unknown species or stomach outside lumps.The tumors included 5 benign tumors and 15 malignant tumors.Conclusions There is a higher value of CT in the diagnosis of gastrointestinal stromal tumor, it can make up the limitations of other clinical imaging examination, has a very important reference value for early diagnosis, treatment and prognosis, it is worthy of popularization and applications.