Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right internal jugular central venous catheter tip terminates in the mid SVC . No pneumothorax is detected . Moderate to large layering right pleural effusion is re - demonstrated . Cardiac and mediastinal contours are unchanged with rightward shift of mediastinal structures again noted . Lung volumes are low which causes crowding of the bronchovascular structures and streaky atelectasis in the left lung base . Right basilar opacification may reflect compressive atelectasis though infection is not excluded .
    OUTPUT:
    
Right internal jugular central venous catheter tip in the mid SVC . Unchanged moderate to large layering right pleural effusion .