Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since the most recent prior radiograph , the left pigtail catheter has been removed . There is no significant change . Again seen are changes s / p VATS and decortication with slight elevation of the left hemidiaphragm . Aeration is improved at the left base . Opacities in the left upper lung zone persist . There are bilateral pleural effusions , greater on the left which is unchanged . Loculated left effusion with internal air - fluid level is unchanged . Cardiomediastinal silhouette is stable .
    OUTPUT:
    
Removal of left pigtail catheter . Stable appearance of bilateral pleural effusions , post - surgical changes , and left lung opacities .