The content of four conjugated bile acid, CA/CDCA, G/T were all lowered in the bile of children with CCC, and the decrease was responsible for the formation gall stones.

• 囊肿患儿三种胆汁中四种初级结合型胆汁酸的含量及G/T ,CA/CDCA均降低 ,胆汁酸组分比的变化 ,也是易产生结石的原因。