目的 分析儿童重症手足口病 (Hand-foot-mouth Disease)胸部X线及CT 表现特点。方法 收集2015年6月-2017年1 月我院47例重症HFMD患儿临床资料，全部 患儿均行胸片X线检查，15例另行胸部CT 平扫。结果 47例患儿胸部影像学表现不 一，形式如下：6例属于支气管炎型，肺 间质受累；8例属于局限型，局限于单个 肺叶或肺断；19例属于混合型，病灶累及 至多个肺叶，甚至整侧肺受累；11例属于 广泛型，双肺多个肺叶受累；3例属于肺 水肿型，双肺呈对称片状阴影，密度由内 至外渐淡。随着重症HFMD患儿病情变化， 其胸部X线亦随之变化，部分患儿可见反 复。结论 重症HFMD患儿胸部X线及CT具有 多种表现形式，以片絮状阴影为主，并伴 有肺部其他表现，且随病情呈动态变化， 有一定特征。

Objective To analyze the manifestations of chest X-ray and CT in children with severe hand-foot-mouth disease (HFMD). Methods The clinical data of 47 cases of children with severe HFMD in our hospital from June 2015 to January 2017 were collected. All children were given the chest X-ray examination, and 15 cases were given the chest CT plain scan. Results There were different manifestations of chest imaging in 47 cases of children. The form was as follows: there were 6 cases with the type of lung interstitial involvement bronchitis, 8 cases of localized type confined to a single lobe or lung, 19 cases with mixed type lesions involving multiple lobes or even the whole side lung, 11 cases with the extensive type involving a double multiple lung lobes and 3 cases with the pulmonary edema type with pulmonary double symmetrical patchy shadows and gradually faded density from the inside to the outside. With the change of the condition of severe HFMD children, the chest X-ray changed, and the recurrence could be seen in some children. Conclusion Chest X-ray and CT have many manifestations in severe HFMD children, mainly with flocculent shadow and accompanied by other manifestations of lung, and they show dynamic changes and certain features with the disease.