Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right hilar mass and right paramediastinal post treatment changes are unchanged since ___ . A small to moderate subpulmonic right pleural effusion has increased since ___ . The left lung is clear . There is no pneumothorax . The cardiac are normal . There is no free air beneath the right hemidiaphragm .
    OUTPUT:
    
Right hilar mass and paramediastinal post treatment changes are unchanged since ___ . A small to moderate subpulmonic right pleural effusion has increased since ___ .