Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest was compared to previous exam from ___ . Tracheostomy tube is again noted . Diffuse changes in the lungs bilaterally consistent with know fibrosis are again noted . The lung bases appear more dense which is likely due to superimposed soft tissues without definite acute consolidation . Cardiac silhouette is enlarged but stable in configuration .
    OUTPUT:
    
No definite acute cardiopulmonary process , findings compatible with patient 's known underlying interstitial lung disease . Please note that subtle changes from an acute process could be obscured from diffuse abnormality . No large confluent consolidation identified .