Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right internal jugular central venous catheter terminates in the low SVC at the cavoatrial junction . Left - sided chest tube and surgical sutures overlying the left upper lung are unchanged from ___ . Left upper mediastinal convex contour is persistent , slightly decreased in size from ___ . Moderate layering right pleural effusion is likely unchanged from ___ . Left basilar opacity is increased from ___ .
    OUTPUT:
    
1 . Moderate right pleural effusion , stable from ___ , smaller than on ___ . 2 . Left upper mediastinal convex contour is persistent , slightly smaller since ___ , which may represent postoperative changes or left upper lobe atelectasis . 3 . Increased left basilar opacity since ___ , likely represents atelectasis although aspiration could be considered .