Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . There are low lung volumes , but the lungs are clear . The cardiomediastinal silhouette is within normal limits . Deformity of the left first and second ribs are again noted . No acute osseous abnormality is identified .
    OUTPUT:
    
No acute cardiopulmonary process .