Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left apical pneumothorax is well seen which could reflect resolution . Moderate - to - large right pleural effusion , associated atelectasis and post-radiation changes are unchanged . Calcified nodes and cardiomediastinal contours are unchanged . Severe degenerative changes in the shoulders bilaterally are unchanged .
    OUTPUT:
    
Unchanged right - sided effusion and regional atelectasis and radiation changes . Left apical pneumothorax no longer seen .