Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Mediastinal and hilar contours are unchanged with similar elevation of the left pulmonary artery . The patient is status post left upper lobectomy with scarring in the medial aspect of the left upper lung field re - demonstrated . Interstitial opacities within the left lung base and left lateral subpleural region are better demonstrated on prior CT . Scarring within the right upper lobe is also unchanged . No new focal consolidation , pleural effusion or pneumothorax is present . No acute osseous abnormality is visualized .
    OUTPUT:
    
No new focal consolidation to suggest pneumonia . Chronic interstitial abnormality within the left lung base and scarring within the right upper lobe . Status post left upper lobectomy .