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目的：研究肺包虫病的特征性CT表现。材料与方法：搜集32例经CT诊断，手术证实的肺包虫病人的检查资料，并进行回顾性分析。结果：32例肺包虫病的主要CT表现是．肺内单纯型，直径2～8cm单发或多发肺内包虫，边缘清晰、密度均匀．内外囊壁紧贴，厚0．1～0．3cm，增强扫描，囊内未见强化。直径9cm以上单囊单发肺内包虫，内囊壁薄而光滑，外囊壁明显增厚粗糙，与受压肺组织分界不清，厚0．4～2cm。含子囊型．囊肿呈分叶状，内伴有网格样高密度影，形似“蜂房状”或“车轮状”．外壁钙化型，卵园型周围呈“蛋壳状”．肺内复杂型，包虫破入支气管，气体窜入内外囊壁之间包虫囊前方呈现“镰刀征”，气体窜入囊内，囊内形成气液平，内液中夹杂气体影，形同“满天星”。包虫破入胸腔，见胸腔积液，胸膜粘连，包央外壁肥厚，内囊塌陷，显示“水上浮莲征”．结论：CT诊断的准确率为100％．
Objective: To study the characteristic CT findings of pulmonary echinococcosis. Materials and Methods: We collected 32 cases of lung hydatid disease confirmed by CT diagnosis and surgery, and analyzed retrospectively. Results: The main CT findings of 32 cases of pulmonary echinococcosis were. Pulmonary simple type, diameter 2 ~ 8cm single or multiple pulmonary hydatid, edge clear, uniform density. Closure of the wall inside and outside the wall, thickness 0.1 ~ 0.3cm, enhanced scanning, no enhancement within the capsule. Diameter of more than 9cm single capsule single lung pulmonary hydatid, the inner wall thin and smooth, thick outer wall thicker and rough, and the compressed lung tissue demarcation is unclear, thickness 0.4 ~ 2cm. Ascocytic. Cysts were lobulated, accompanied by high-density grid-like shadow, the shape of “honeycomb” or “wheel-shaped.” Calcification of the outer wall, oval-shaped garden was “egg-shell-like.” Pulmonary complex, hydatid breach the bronchus, gas fleeing into the cyst between the internal and external wall in front of the hydatid cysts appear “sickle sign”, gas fleeing into the cyst, the formation of gas in the cyst fluid, the inclusion of gas inside the shadow, shape Same as “gypsophila.” Hydatid son broke into the chest, see pleural effusion, pleural adhesions, including the outer wall of the hypertrophy, collapse of the inner capsule, indicating “floating float levy sign.” Conclusion: The accuracy of CT diagnosis is 100%.