Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to prior study the lung volumes are lower . There is a right pleural effusion with adjacent compressive atelectasis . A consolidation in this region can not be excluded . The cardiomediastinal contours are stable . Stable calcification of the ascending aorta and aortic arch . There is calcification noted in the left carotid artery and right rotator cuff .
    OUTPUT:
    
Increased opacity in the right lower lung may represent worsening pleural effusion and compression atelectasis . However in the appropriate clinical setting , superimposed pneumonia can not be excluded .