Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Changes related to prior right upper lobectomy are again noted , with relative volume loss on the right . The left lung is hyperinflated , with relative paucity of vascularity in the apex , compatible with emphysema . Streaky atelectasis or scarring is noted in the left midlung and right lung base . No pneumothorax , pulmonary edema , or focal consolidation concerning for pneumonia is identified . The heart is normal in size .
    OUTPUT:
    
No evidence of pneumonia .