Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac and mediastinal contours appear unchanged . The right hilar contour has decreased in extent , with near resolution of the right - sided pleural effusion . There is probably still a loculated component of pleural effusion along the posterior aspect of the right lower lobe and probably parenchymal opacity , but minimal . The left lung remains clear . There is no definite pneumothorax . Regarding positioning of a right - sided pleural tube , on the frontal view , it terminates in the right upper posterior chest , very similar to the prior examination . Thoracic compression deformities appear unchanged . These include a moderate - to - severe mid thoracic wedge compression deformity . Post - surgical changes are stable .
    OUTPUT:
    
Substantial decrease in right - sided pleural effusion and otherwise unchanged post-treatment appearance of the chest .