本义报告了31例经手术及病理证实的儿童先天性胆总管囊肿.其中男11例,女20例,平均年龄2.9岁(3天至11岁),全部病例均于手术前进行了超声及X线胃肠钡餐造影检查.结果:诊断符合率超声为935%(29/31),X线为58.1%(18/31).二者对比显示,超声检查诊断儿童先天性胆总管囊肿优于X线胃肠钡餐造影,尤其囊肿较小时.因此,超声应作为儿童先天性胆总管囊肿影像学检查中的首选方法. The original meaning of 31 cases of surgically and pathologically confirmed children with congenital choledochal cysts, including 11 males and 20 females, mean age 2.9 years (3 days to 11 years), all cases were performed before surgery ultrasound and X Ray and gastrointestinal barium meal angiography.Results: The diagnostic coincidence rate of ultrasound was 935% (29/31), X-ray was 58.1% (18/31) .The two contrasts, ultrasound diagnosis of children with congenital choledochal cyst is better than X Gastrointestinal barium meal, especially when the cyst is small.Therefore, ultrasound should be used as the preferred method of imaging in children with congenital choledochal cyst.