Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Medial bibasilar linear opacities appear similar compared to prior and likely represent atelectasis or scarring . No focal consolidation , pleural effusion , pneumothorax , or pulmonary edema is detected . Hyperinflation is due to bronchospasm or COPD . Lateral view suggests left ventricular enlargement or pericardial effusion .
    OUTPUT:
    
No pneumonia or pulmonary edema . Possible COPD or acute bronchospasm . Possible left ventricular enlargement or pericardial .