Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are normal . No pleural effusions . No pneumothorax . Normal transparency and structure of the lung parenchyma . No evidence of pneumonia . A zone of minimally decreased transparency , visible on the lateral radiograph only and projecting over the middle lobe , is caused by a projection artifact . Normal size of the cardiac silhouette . Normal hilar and mediastinal structures .
    OUTPUT:
    
No evidence of pneumonia . As requested , the referring physician , ___ . ___ , was paged for notification at the time of observation and dictation , 4 :53 p .m . , on ___ .