Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Faint increased interstitial markings are compatible with findings of patient 's known interstitial disease . There is no superimposed consolidation , effusion , or edema . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities .
    OUTPUT:
    
Findings compatible with patient 's known underlying interstitial lung disease without superimposed acute cardiopulmonary process .