Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette size is normal . Mediastinal and hilar contours are unremarkable . The pulmonary vascularity is normal . No focal consolidation , pleural effusion or pneumothorax is present . Minimal linear atelectasis versus scarring is seen in the left lung base . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary abnormality .