Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is streaky density in the upper lobes most consistent with parenchymal scarring , more pronounced on the right . Ill - defined increased density in the lung bases that probably represents a chronic interstitial changes and subsegmental atelectasis or scarring . There is no definite focal consolidation . The patient is status post median sternotomy and CABG as before . A PICC is been withdrawn .
    OUTPUT:
    
No definite evidence of active pulmonary disease .