Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . No prior . The lungs are clear . Costophrenic angles are sharp . Incidental note is made of an azygos fissure . Cardiomediastinal silhouette is within normal limits . Hypertrophic changes seen in the spine . Osseous and soft tissue structures are otherwise unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process .