Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been continued clearing of the acute diffuse abnormal opacification present for the last several weeks overlying a background of fibrosis of severe interstitial lung disease . There has been interval removal of left internal jugular central venous catheter . Tracheostomy tube appears unchanged .
    OUTPUT:
    
1 . Continued clearing of the acute diffuse opacification present for the last several weeks . 2 . Extensive interstitial fibrosis consistent with NSIP . 3 . In view of extensive pulmonary changes , it is impossible to exclude super infection .