聚发性肺型并殖吸虫病的早期CT表现

Characteristics of group-occurring lung paragonimiasis in early stage in CT

目的探讨聚发性肺型并殖吸虫病的早期CT表现特征。方法搜集两起9例由聚餐生食石蟹引发的肺型并殖吸虫病,均经实验室及临床证实,其中8例在我院就诊,回顾性分析其影像学表现特点。结果 8例均有不同程度的胸腔积液,7例表现为肺内浸润性病变,随机分布于胸膜下,部分伴有月晕征,其中1例灶中可见特征性CT表现"隧道征",2例伴发支气管周围炎。结论 CT检查如发现随机分布的胸膜下肺内浸润性病变或"隧道征",合并胸腔积液,结合生食石蟹等河鲜史,外周血嗜酸粒细胞升高,可提示并殖吸虫病的诊断。

To investigate the CT appearances in early stage of clustering lung paragonimiasis, 9 cases of two clustering lung paragonimiasis caused by eating raw stone-crab and laboratory examination were included in the study. Eight cases consulted by doctors in the hospital and their appearances were retrospectively analyzed. There were pleural effusion of varying degree （n=8） and random distribution sub-pleural pulmonary infiltrative lesions （n=7）. The accompany appearances of the latter had lunar halo sign, characteristic tunnel sign （n=1） and peri-bronchitis （n=1）. If CT detects pulmonary infiltrative lesions of random distribution within sub-pleura or tunnel sign, combining with the history of eating raw stone crabs and other freshwater fishes, with the rise of eosinophilic granulocytes in peripheral blood, the diagnosis of paragonimiasis should be suggested.