Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The aorta is tortuous . Pulmonary vascularity is normal and the hilar contours are within normal limits . No focal consolidation , pleural effusion or pneumothorax is present . Minimal linear opacities within the left lung base likely reflect subsegmental atelectasis . There is are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary abnormality .