Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Tracheostomy tube is again seen . Left - sided subclavian central venous catheter is present , with the tip in the junction of the brachiocephalic veins . The cardiac and mediastinal silhouettes remain unchanged , allowing for the technique . A balloon is seen projecting over the stomach , probably representing a gastrostomy tube . There is increased opacification of the right hemithorax compared to the prior examination , with an appearance suggesting a small - to moderate - sized layering pleural effusion . The left hemithorax remains clear . No evidence of pneumothorax , although it is noted at the left lung apex is excluded from the imaging .
    OUTPUT:
    
Right - sided pleural effusion , small to moderate in size . Otherwise , unchanged examination of the chest .