Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest . The lungs are hyperinflated but are clear . Focal opacity projects over the anterior right 4th rib is thought to be calcification of the costochondral cartilage . The lungs are otherwise notable for right apical calcified scarring . Small hiatal hernia is noted . No acute osseous abnormalities detected .
    OUTPUT:
    
No acute cardiopulmonary process .