Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours are normal . The pulmonary vascularity is normal . Apparent hazy opacification within the right lung base is likely due to pectus excavatum deformity , and no consolidative opacity is seen on the lateral view . Lungs are otherwise clear . No pleural effusion or pneumothorax is present . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary abnormality .