Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal , and unchanged . The mediastinal and hilar contours are stable . Pulmonary vascularity is not engorged . There are linear opacities within the left lung base which are unchanged , likely reflective of scarring or atelectasis . Suture material is seen projecting over the right upper / mid lung field . No focal consolidation , pleural effusion or pneumothorax is present . There are multilevel degenerative changes in the thoracic spine along with S - shaped scoliosis .
    OUTPUT:
    
No radiographic evidence for pneumonia or pulmonary edema .