Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is moderately enlarged , unchanged in size since the ___ radiograph . Again seen is central pulmonary vascular congestion with mild interstitial edema . There is no focal consolidation , pneumothorax , or pleural effusion .
    OUTPUT:
    
Moderate cardiomegaly , central vascular congestion , and mild interstitial edema , compatible with CHF .