Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP single view of the chest shows reduced lung volume with new right base opacity suspicious for pneumonia . The left base opacification is likely due to atelectasis . Prominent hila are due to vascular congestion . There is no pleural effusion or pneumothorax . Heart size is unchanged .
    OUTPUT:
    
Right base opacity compatible with pneumonia . Left base atelectasis and mild vascular congestion .