CAJ | 학술논문

目的：探讨胃肠道外间质瘤(EGIST)的多层螺旋 CT 表现。方法回顾性分析经手术和病理证实的9例胃肠道外间质瘤的 CT 资料。结果9例原发胃肠道外间质瘤中,恶性7例,良性2例。其中2例发生在肝脏,2例发生在结肠系膜,2例在小肠系膜,2例表现为腹膜、网膜、小肠及系膜、结肠浆膜面及盆腔广泛弥漫散在结节,并与盆腔内结节融合成较大肿块,1例发生在右肾周间隙。病灶最大径约5.0~14 cm,平均9.6 cm,分叶状5例,圆形或类圆形4例。平扫病灶密度不均匀,可见大小不等囊变及坏死区,2例出现钙化；增强扫描动脉期均可见边缘及中心明显异常增粗或增多的肿瘤血管。结论胃肠道外间质瘤的 CT 表现有一定的特点。
목적：탐토위장도외간질류(EGIST)적다층라선 CT 표현。방법회고성분석경수술화병리증실적9례위장도외간질류적 CT 자료。결과9례원발위장도외간질류중,악성7례,량성2례。기중2례발생재간장,2례발생재결장계막,2례재소장계막,2례표현위복막、망막、소장급계막、결장장막면급분강엄범미만산재결절,병여분강내결절융합성교대종괴,1례발생재우신주간극。병조최대경약5.0~14 cm,평균9.6 cm,분협상5례,원형혹류원형4례。평소병조밀도불균균,가견대소불등낭변급배사구,2례출현개화；증강소묘동맥기균가견변연급중심명현이상증조혹증다적종류혈관。결론위장도외간질류적 CT 표현유일정적특점。
Objective To analyze CT features of extra-gastrointestinal stromal tumom(EGIST).Methods The CT data of 9 pa-tients with EGIST proved by operation and pathology were analysed retrospectively.Results Of 9 cases with EGIST,7 cases were malignant and 2 cases were benign.2 cases were origina-ted from liver.2 cases from mesocolon,2 cases from Small mesentericin,2 case showed widely diffuse nodules scattered in peritoneum,omentum,small intestine,mesangial and colon serosa.In those nodules, some nodules from pelvic cavity wereinosculated into larger mass.1 case came from right kidney week gap.The biggestdiameter of tumomrs of each case was ranged from 5.0 cm to 14.0 cm (mean 9.6 cm).5 cases showed lobulated shape,4 cases showed round or oval.All cases showed non-homogeneous density in plain CT,with cystic change and necrotic foci in 7cases,calcification in 2 cases.In arterial phase,all cases appeared significantly abnormal thickening or multiply tumor blood vessels in edge and center of those tumors.Conclusion EGIST has unique imaging performance.