Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal silhouette is enlarged . There is no focal lung consolidation . Increased opacification of the right lung base , likely represents atelectasis . There is no pneumothorax or pleural effusion . There is no acute osseous abnormality .
    OUTPUT:
    
Cardiomegaly . Right basal atelectasis .