Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . The mediastinal and hilar contours appear unchanged . Bullous changes are similar at the apices . The lungs are mild to moderately hyperinflated . Although new since earlier studies , there has been little if any change in patchy opacities in the right middle and lower lobes , streaky in nature with peribronchial cuffing , over the past month . There is no definite pleural effusion or pneumothorax . Mild degenerative changes are similar along the thoracic spine .
    OUTPUT:
    
Stable appearance of the chest over the short term , with no clear change at all , suggesting that right basilar opacities may indeed be associated with chronic scarring or atelectasis . However , the possibility of pneumonia or lower airway infection is hard to completely exclude .