Purpose: To Probe how to clear echinococcus endocyst, daughter-cysts and necrotic tissues in the cyst and to treat cystic biliary fistula with percutaneous puncture technique.

• 目的：探讨应用经皮穿刺清理棘球蚴内囊子囊及囊内坏死组织，并对囊腔胆瘘进行处理。