Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are normally expanded with exception of mild platelike atelectasis in the right mid lung . There is no focal airspace opacity worrisome for pneumonia . There is no pleural effusion or pneumothorax . The size of the cardiomediastinal silhouette is within normal limits .
    OUTPUT:
    
Mild platelike atelectasis in the right lung . No evidence of pneumonia .