Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and CABG . Left - sided AICD / pacemaker device is noted with leads terminating in the regions of the right atrium , right ventricle , and coronary sinus , unchanged . Heart size remains mildly enlarged . Mediastinal and hilar contours are similar . Lung volumes are low with diffuse increased interstitial markings with reticulation , most pronounced along the periphery and within the lung bases bilaterally . There is no pulmonary edema , new focal consolidation , pleural effusion or pneumothorax . No acute osseous abnormalities detected .
    OUTPUT:
    
Chronic interstitial lung disease , previously characterized on chest CT as potentially due to NSIP . No new focal consolidation to suggest pneumonia .