Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable upright radiograph demonstrates a mild to moderately enlarged heart similar in appearance to prior study dated ___ . No evidence of overt pulmonary edema . Lungs are hyperinflated . There is no focal consolidation to suggest pneumonia . No large pleural effusion or pneumothorax is identified .
    OUTPUT:
    
Stable cardiomegaly without overt pulmonary edema . Hyperinflated lungs .