Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is moderately enlarged . The hilar and mediastinal contours are within normal limits . There is central pulmonary vascular congestion with mild interstitial edema . There is no pneumothorax or pleural effusion . Intrafissural fluid is also seen on the lateral view .
    OUTPUT:
    
Central pulmonary vascular congestion and mild interstitial edema .