Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Severe cardiomegaly and unfolding of the thoracic aorta is unchanged . Hilar contour is demonstrates central pulmonary vascular congestion . There is no frank interstitial edema . Lungs are again mildly hyperinflated but otherwise clear without dense consolidation . Pleural surfaces clear without effusion or pneumothorax .
    OUTPUT:
    
Severe cardiomegaly , pulmonary vascular congestion without frank interstitial edema . No pneumonia .