Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA lateral images of the chest . The lungs are well expanded . Peribronchial opacification is seen at the right lung base , which likely represents early pneumonia or possibly severe bronchitis . No pleural effusion or pneumothorax is seen . The cardiomediastinal silhouette is mild to moderately enlarged , unchanged from prior exam .
    OUTPUT:
    
1 . Peribronchial opacification at the right lung base , which likely represents early pneumonia or possibly severe bronchitis . 2 . Mild to moderate cardiomegaly , stable from prior exam .