Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single frontal supine view of the chest was obtained . Soft tissue attenuation limits detailed evaluation . The heart is moderately - to - severely enlarged . Pulmonary vasculature is normal . Lungs are clear without focal or diffuse abnormality . No pleural effusion or pneumothorax . No radiopaque foreign body .
    OUTPUT:
    
Moderate - to - severe cardiomegaly .