Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single AP portable view of the chest was obtained . A large bore right - sided central catheter is seen terminating in the proximal right atrium / cavoatrial junction . The patient is status post median sternotomy and CABG . The cardiac silhouette is moderately enlarged . The mediastinal contours are unremarkable . Left base opacity is seen , with obscuration of the diaphragm concerning for a pleural effusion with overlying atelectasis . There is also hazy opacity at the right lung base , which could relate to layering effusion with atelectasis ; however , consolidation is not excluded in the appropriate clinical setting in either lung base .
    OUTPUT:
    
1 . Cardiomegaly . 2 . Bibasilar opacities on the left could be due to pleural effusion and atelectasis , although consolidation due to infection is not excluded at either lung base .