Conclusions: Infective atypical pneumonia mostly located in unilateral lower lung, Which displaying multiform or single form. The major morphogenesis took on dotted patch,dim patch,ground-glass,cloud floccule,reticulation and lung consolidation.

• 结论:传染性非典型肺炎多出现于单侧下肺,可表现为单形态或多形态,主要形态有点片状影、淡薄片状影、磨玻璃影、云絮状影、网状影及实变;