Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . As on prior exams , there is diffuse increased reticular markings and known bronchiectasis . There is no definite superimposed acute process ; however , subtle interval change would be difficult to exclude given the extent of the parenchymal disease . The cardiomediastinal silhouette is unchanged . No acute osseous abnormality is identified . Posterior right sixth rib deformity is again seen .
    OUTPUT:
    
Diffuse bilateral abnormality in the lungs , previously characterized by CT . No definite acute superimposed process , although subtle change could easily be obscured .