Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are hyperinflated but clear . Heart size is moderately enlarged . Mediastinal and hilar contours are normal . No pleural effusion or pneumothorax .
    OUTPUT:
    
1 . Hyperinflated lungs , with no evidence of pneumonia . 2 . Moderate cardiomegaly with no evidence of heart failure .