不典型肺包虫病是破裂、感染的肺包虫病的特殊表现。其发生率缺乏报道，平片诊断困难，ＣＴ扫描有重要意义。我们遇到３例，均经手术证实为肺包虫病并感染（其中１例为多子囊型）。现报告如下：例１　男，１５岁。咳嗽，咳痰，痰中带血４月余。当地医院拍片诊断：左肺下叶不规 Atypical pulmonary echinococcosis is a specific manifestation of ruptured, infected pulmonary echinococcosis. The incidence of a lack of coverage, plain film diagnosis difficult, CT scan has important significance. We encountered three cases, both confirmed by pulmonary echinococcosis and infection (including one case of multiple ascapsular type). The report is as follows: Example 1 Male, 15 years old. Cough, expectoration, bloody sputum more than 4 months. Local hospital film diagnosis: irregular left lung lobe