Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . There is patchy left mid - to - lower lung opacity not as well appreciated on the prior study , worrisome for pneumonia . There may also be subtle patchy opacity at the lateral right base which may be due to atelectasis . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable .
    OUTPUT:
    
Subtle patchy opacities in the left mid - to - lower lung and possibly the lateral right lung base , not as well appreciated out on the prior study , which is less sensitive , concerning for pneumonia . Recommend followup to resolution .