Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single portable AP chest radiograph was obtained . Bilateral airspace opacities are new since ___ when there was only a mild pulmonary vascular congestion and right sided atelectasis . Cardiomegaly is moderate . There is no pneumothorax . There is a moderate right pleural effusion .
    OUTPUT:
    
Bilateral airspace opacities most likely due to severe CHF .