【摘要】 目的:探讨MSCT对小儿消化道重复畸形的诊断价值。方法:回顾性分析27例经手术病理证实的小儿消化道重复畸形病例,分析其CT表现,包括囊肿部位、形态、密度和囊壁厚度,并分析其相关并发症。结果:27例消化道重复畸形中发生在食管2例,胃3例,胃合并食管1例,小肠19例,结肠2例。囊肿形态在CT上表现为圆形23例、管形3例、圆形-管形复合型1例。25例囊肿CT平扫为液性低密度,1例合并囊内出血呈高密度,1例囊内可见气体。囊壁厚度大于同层面肠壁者有22例,囊壁均有强化,2例囊壁可见钙化。27例囊肿中,6例出现并发症,包括囊内出血1例,囊肿破裂穿孔伴胰腺炎1例,继发肠梗阻4例。结论:低密度液性囊肿(偶见气体)、厚壁、管形或圆形-管形复合型形态是消化道重复畸形特征性的CT表现。CT对诊断消化道重复畸形合并肠旋转不良、肠闭锁等畸形和(或)伴发肠梗阻、肠扭转等病变颇具优势。更多还原

【Abstract】 Objective:To assess the value of multi-slice CT(MSCT) in the diagnosis of gastro-intestinal tract(GI tract) duplication in children.Methods:The MSCT findings of 27 children with surgery and pathology proven GI tract duplication were retrospectively analyzed,including the location,size,density and wall thickness of duplication cyst,as well as the complications.Results:In Of these 27 cases,the duplication located at esophagus(n=2),storach and esophagus(n=1),stomach(n=3),small intestine(n=19) and colon(n=2).The shape of duplication cyst was round(n=23),tubular(n=3) and round-tubular(n=1).On plain CT,the density of duplication cyst was fluid-like with low attenuation(n=25),but one presented as high density due to intra-cystic hemorrhage,and one with small amount of intra-cystic air.The cystic wall was thicker than the intestinal wall on the same slice(n=22) and all of the cystic wall enhanced after contrast administration.Calcification of cystic wall was assessed in 2 cases.In 27 cases with duplication,complications including intra-cystic hemorrhage(n=1),cyst perforation associated with pancreatitis(n=1) and secondary intestinal obstruction(n=4).Conclusion:Low attenuated fluid-filled cyst(sometimes intra-cystic air could be assessed),thickened wall,round or round-tubular shape are the typical CT findings of GI tract duplication in children.MDCT is significantly superior in detecting GI tract duplication complicated with intestinal mal-rotation,atresia,and/or associated intestinal obstruction and volvulus.更多还原