儿童胸肺型合并脑型肺吸虫病的CT和MRI表现  

CT and MRI findings of lung and cerebral paragonimiasis in children

作　　者：范文辉 杜柏林 梁奕 王佳 林浩 

机构地区：[1]武汉脑科医院/武汉长江航运总医院影像科,武汉430010

出　　处：《放射学实践》2016年第10期976-979,共4页Radiologic Practice

摘　　要：目的:研究胸肺型和脑型肺吸虫病的CT及MRI影像学特点,提高对本病的认识。方法:4例患儿经实验室检查确诊肺吸虫病,均行胸部CT检查及脑部MR平扫加增强检查,回顾性分析其CT及MRI影像表现并结合文献总结其影像特点。结果:肺部表现4例均见胸腔积液并胸膜下肺结节;3例见肺内蜿蜒条状密度增高影;2例见肺内斑点状模糊影;2例见肺内小结节,其中1例结节边缘见弯曲条状影,状如"蝌蚪"。脑部表现3例见颅内大小不等出血灶;2例见多发结节状或环形强化病灶,分布于脑实质及脑室内;2例见"隧道征";所有病灶周围均有大小不等水肿信号。结论:胸腔积液合并胸膜下肺结节、肺内蜿蜒条状密度增高影及状如"蝌蚪"的小结节是胸部较特征性的CT表现。脑实质及脑室内多发结节状或环形强化病灶及"隧道征"为脑部较特征性的MRI表现。胸部和脑部病变均具有多发及迁移性。Objective：To study the CT and MRI features of lung and cerebral paragonimiasis in children,in order to improve the understanding of this disease.Methods：The images of 4children with laboratory confirmed diagnosis of chest and cerebral paragonimiasis were retrospectively analyzed.To summarized the characteristics of the images,and review literatures.Results：Chest CT results：the common findings were pleural effusion and subpleural pulmonary nodules.3cases showed curved strip shadow in the lung.2cases showed small patchy fuzzy shadow.2cases showed small nodules,one of which had bending line at the edge of it,like the shape of tadpole.Brain MRI results：3cases showed variable size hemorrhage.2cases showed nodulars or ring enhanced lesions,which located in cerebral parenchyma and ventricle.2cases showed ＂tunnel sign＂.All lesions were surrounded with variable size edema.Conclusion：The CT features of children lung paragonimiasis were pleural effusion and subpleural pulmonary nodules,as well as curved strip shadow in the lung and small nodules which like the shape of tadpole.The MRI features of children cerebral paragonimiasis were ＂tunnel sign＂ as well as nodulars or ring enhanced lesions.Chest and brain lesions were characterized by multiple and migratory properties.

关 键 词：并殖吸虫 肺 脑 磁共振成像 体层摄影术 X线计算机 

分 类 号：R725.3[医药卫生—儿科] R445.2[医药卫生—临床医学] R816.92