Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours are within normal limits . Heart size is top normal . The pulmonary vascularity is normal . No focal consolidation , pleural effusion or pneumothorax is present . Subsegmental atelectasis in the right lung base is present . There is minimal scarring within the lung apices . No acute osseous abnormality is seen .
    OUTPUT:
    
No evidence for pneumonia or pulmonary edema .