成人肠套叠的CT诊断价值

目的 探讨CT对成人肠套叠的诊断价值.方法 回顾性分析经手术和病理证实的15例成人肠套叠的CT表现.结果 15例成人肠套叠的原因分别为:恶性病变包括结肠癌3例,淋巴瘤2例,转移瘤1例,共6例(6/15);良性病变包括血管瘤2例,粘膜下脂肪瘤4例,平滑肌瘤2例,结肠息肉1例,共9例(9/15).表现为小肠-结肠套叠5例,小肠型肠套叠3例,结肠-结肠型肠套叠7例.CT直接征象:靶征12例,彗星尾征7例,肾形征4例,其间肠系膜脂肪套入形成半月形或环形征象9例,如套入部与鞘部肠壁间的气体则形成偏心或外周气泡6例;间接征象:肠壁增厚7例,近侧肠腔不同程度的扩张9例,肠梗阻6例,邻近肠系膜或筋膜浸润1例.CT发现原发病8例(8/15).结论 CT对成人肠套叠的诊断有重要价值,并为术前病因诊断提供重要参考.

MSCT diagnostic worth of intussusception in adult

Objective To explore CT diagnostic the worth of intussusception in adults.Methods CT manifest of 15 cases intussusception in adults which were confirmed by pathology and operation were analysled retrospectively.Rusults The cause of 15 cases included colonic carcinomas(n=3);lymphoma(n=2);hemangioma(n=2)polylipoma(n=4);metastatic tumors(n=1); leiomyoma(n=2),colonic polypus(n=1).There were ileocolonic intussusceptions (n=5), small bowel intussusceptions (n=3) and colocolonic intussusception(n=7).Direct signs such as "target sign"(n=12) and "comet tail(n=7) and kidney sign"(n=4).Indirect sign of intussusception like increased bowel wall thickness(n=7),dilataltion of proximal intestintal cavity (n=9),intestintal obstruction(n=6) and mesentery infiltration(n=1) were observed.8 primary lesions(8/15)were found on CT.Conclusion CT has important diagnostic worth and it provide main reference in pathogenic diagnosis of intussusception in adult before operation.