Objective To summarize the clinical features of mycoplasma pneumoniae pneumonia in children and analysis the value of X-ray in diagnosing mycoplasma pneumonia in children. Methods Sixty-three cases of children with mycoplasma pneumonia selected from January 2013 to January 2014 were analyzed retrospectively, the quality of X-ray pictures and clinical features were summed, imaging characteristics of X-ray were also analyzed. Re-sults X-ray films of 126 images, A level piece of 120 (95.2%), B level piece of 5 (4.0%), C level piece of 1 (0.8%), 0 of waste film. The clinical symptoms were cough, fever, red throat, wheezing, breathing sounds rough and so on. There were radiographic changes of 63 children with pulmonary, 23 cases (37%) had bilateral lung disease, 40 cases (63%)had unilateral lung, 27 cases of which had the right lung (68%), and 13 cases (32%) were the left lung. Among 63 children with mycoplasma pneumonia, there were 35 cases (56%) of interstitial infiltration type ,19 cases (30%) of alveolar infiltrative type, 8 cases(13%) of hilar enriched type, 2 cases (3%) of mixed type. Conclusion There were clinical manifestations (cough, fever etc.) and X-ray features (interstitial infiltrative shadow, alveolar infiltrative shad-ows, and so on) in children with mycoplasma pneumoniae, but diagnosis should be combined with clinical manifesta-tions and laboratory tests.%目的：总结儿童支原体肺炎的临床表现特点，分析X线摄片诊断儿童支原体肺炎的临床价值。方法回顾性分析2013年1月至2014年1月63例儿童支原体肺炎的临床资料，其中男性36例，女性27例，年龄2个月至1岁5例（8％），～3岁11例（17％），3～6岁32例（51％），7～12岁15例（24％），平均年龄（5±3）岁。采用美国GE公司计算机X线摄影（CR）行胸部正侧位片，曝光条件根据患儿体厚设定，靶片距100～160 cm，患儿安静时曝光拍摄，尽可能避免再次拍摄和降低射线剂量。总结X线图片质量、临床表现，分析X线摄片的影像学特点。结果126张胸片图像中，一级片120张（95．2％），二级片5张（4．0％），三级片1张（0．8％），废片0张。临床症状主要是咳嗽、发热、咽部发红、喘息、呼吸音粗糙等。63例患儿肺部均存在影像学改变，双侧肺病变23例（37％），单侧肺40例（63％），其中右侧肺27例（68％），左侧肺13例（32％）。 X线表现为间质浸润型阴影35例（56％）、肺泡浸润型阴影19例（30％）、肺门增浓型阴影8例（13％）和混合型阴影2例（3％）。结论儿童支原体肺炎临床表现主要是咳嗽、发热等，X线表现主要是间质浸润型阴影、肺泡浸润型阴影等，确诊应结合临床表现和实验室检查。
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