多层螺旋CT对胃部异位胰腺和间质瘤的鉴别诊断价值  

Multi-slice CT in differential diagnosis of gastric ectopic pancreas and gastric stromal tumors

作　　者：潘永军 刘铁军[1] 韦璐[1] 莫亮 黄冬 PAN Yongjun;LIU Tiejun;WEI Lu;MO Liang;HUANG Dong(Department of Radiology,Liuzhou People's Hospital,Liuzhou 545006,China;MRI Room,Liuzhou People's Hospital,Liuzhou 545006,China)

机构地区：[1]柳州市人民医院放射科,广西柳州545006 [2]柳州市人民医院磁共振中心,广西柳州545006

出　　处：《中华实用诊断与治疗杂志》2019年第12期1229-1231,共3页Journal of Chinese Practical Diagnosis and Therapy

基　　金：广西壮族自治区卫生和计划生育委员会自筹经费科研项目(Z2016126)

摘　　要：目的探讨多层螺旋CT(multi-slice CT,MSCT)对胃部异位胰腺和间质瘤的鉴别诊断价值。方法经术后组织病理学检查证实的胃部异位胰腺17例为胃部异位胰腺组,胃间质瘤23例为胃间质瘤组,患者术前增强CT扫描均可见明确病灶;比较2组MSCT影像特征。结果胃部异位胰腺好发于胃窦部,以圆形多见,腔内生长为主,边界较清晰,胃黏膜连续性良好;胃间质瘤好发于胃体部,圆形或卵圆形多见,以腔内腔外混合生长为主,且胃黏膜缺乏连续性;胃部异位胰腺组病灶长径[(34.41±13.92)mm]、长径/短径比值(2.20±0.48)大于胃间质瘤组[(21.76±6.44)mm、1.64±0.20](P<0.05),短径[(14.72±5.64)mm]小于胃间质瘤组[(18.76±6.26)mm](P<0.05),CT平扫、增强动脉期和静脉期的Ct值与胃间质瘤组比较差异无统计学意义(P>0.05)。结论MSCT检测病灶大小、好发部位、生长方式及胃黏膜连续性等特征对胃部异位胰腺和胃间质瘤的诊断及鉴别诊断有一定价值。Objective To explore the value of multi-slice CT(MSCT)to the differential diagnosis of gastric ectopic pancreas(GEP)and gastrointestinal stromal tumors(GIST).Methods Seventeen patients with histopathologically confirmed GEP(GEP group)and 23patients with GIST(GIST group)underwent enhanced CT before operation.The features of MSCT were compared between two groups.Results Heterotopic pancreas was mostly found in the gastric antrum with round shape,mainly growing in the lumen,clear boundary and good continuity of gastric mucosa.GIST was mostly found in the body of the stomach,round or oval in shape,mainly mixed growing inside and outside the lumen,and gastric mucosa lacked continuity.The long diameter of the focus was longer in GEP group((34.41±13.92)mm)than that in GIST group((21.76±6.44)mm)(P<0.05),the ratio of long diameter to short diameter was larger in GEP group(2.20±0.48)than that in GIST group(1.64±0.20)(P<0.05),the short diameter of the focus was shorter in GEP group((14.72±5.64)mm)than that in GIST group((18.76±6.26)mm)(P<0.05),and there were no significant differences in Ct values in CT plain scan,enhanced arterial phase and intravenous phase between two groups(P>0.05).Conclusion MSCT examination of lesion size,location,growth pattern and gastric mucosa continuity has a certain value in the diagnosis and differential diagnosis of GEP and GIST.

关 键 词：胃部异位胰腺 胃间质瘤 多层螺旋CT 

分 类 号：R735.2[医药卫生—肿瘤] R730.44[医药卫生—临床医学]