Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is moderately enlarged , unchanged since ___ . The central pulmonary vessels are prominent , however , previously - seen edema has resolved . Linear bibasilar opacities are compatible with atelectasis . There is no effusion or pneumothorax .
    OUTPUT:
    
Moderate cardiomegaly with mild central vasculature prominence , but no edema . Bibasilar atelectasis .