Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right subclavian central venous catheter tip terminates at the caval atrial junction . Low lung volumes are present . The heart size is mildly enlarged but accentuated due to low lung volumes . There is crowding of the bronchovascular structures with likely mild pulmonary vascular engorgement . Moderate size right pleural effusion has increased compared to the prior study . Additionally patchy opacities within the right lung base likely reflect compressive atelectasis though infection can not be excluded . No pneumothorax is identified . There are no acute osseous abnormalities .
    OUTPUT:
    
Mild pulmonary vascular congestion with increased size of moderate right pleural effusion . Right basilar opacification may reflect compressive atelectasis but infection can not be excluded .