Abstract: Among 42 child cases of pulmonary echinococcosis granulosus treated by excision of internal cyst through  video-assisted thoracoscopic surgery (VATS), the cysts were completely removed in 28 cases (66.7%), cysts in 14 cases (33.3%) were removed by puncture, and cyst ruptured accidentally during operation in 1 cases (2.4%). The mean operation time was (96.70±10.90) min, mean volume of blood loss during operation was (8.60±1.31) ml, and the average admission in hospital was (10.20±1.10) d, with post-operation complications in 2 cases (4.8%). Three years' follow-up revealed no recurrence. The VATS is a way for treating pulmonary echinococcosis granulosus in children with light trauma, less bleeding and fewer complications.

Key words: Pulmonary echinococcosis granulosus, Video-assisted thoracoscopic surgery, Excision of internal cyst, Child