Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are fully expanded and clear . No pleural abnormalities . Moderate cardiomegaly is unchanged since at least ___ . No pulmonary vascular congestion or pulmonary edema . Cardiomediastinal and hilar silhouettes are normal .
    OUTPUT:
    
Cardiomegaly is unchanged . No pulmonary edema .