Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right hemidiaphragm . Tip continues to be elevated with probable subpulmonic effusion there is indistinct pulmonary vasculature predominantly on the right . However , the alveolar infiltrate on the right has improved the heart continues to be severely enlarged . Pacemaker and leads are unchanged . Left IJ line is unchanged .
    OUTPUT:
    
slight improvement in CHF with subpulmonic effusion on the right .