Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with 1 day earlier , the previously seen dense opacification at the right lung base is no longer visualized . There is some residual , more patchy , right base opacity , probably with air bronchograms . Minimal , if any , residual pleural fluid . Undulating contour of the right hemidiaphragm suggest eventration . No pneumothorax detected . The cardiomediastinal silhouette remains midline . Curvilinear opacity overlies the left neck question bandage or other artifact . Rounded previously seen rounded density along the left mid chest remains faintly visible .
    OUTPUT:
    
Considerable interval improvement in previously seen dense right base opacity .