Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . The cardiac , hilar and mediastinal contours are normal . No pleural abnormality is seen . There is slight undulation in the contour of the lateral ninth rib on the right , however no left - sided rib abnormalities are appreciated . There is mild rightward curvature of thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary process . Slight undulation of the right lateral ninth rib , however no left - sided rib abnormalities .