Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . The hilar and mediastinal contours are normal . There has been interval improvement of the right sided pleural effusion with some remaining residual fluid . There is a collapsed portion of the right lower lobe , likely the middle lobe . A pleural catheter is seen within the right lower lobe . The left lung is well expanded . There is subcutaneous gas along the lateral aspect of the right chest and neck .
    OUTPUT:
    
Residual fluid from right - sided effusion with collapsed portion of right lower lobe .