Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest are compared to previous exam from ___ . There is elevation of left hemidiaphragm . Minimal left basilar opacity persists and is likely due to atelectasis . The lungs are otherwise clear . Cardiomediastinal silhouette is within normal limits . Hypertrophic changes are seen in the spine . There is no visualized displaced rib fracture on this single chest x-ray . Degenerative changes are noted at the right shoulder .
    OUTPUT:
    
No definite acute cardiopulmonary process . No visualized displaced rib fracture . If high clinical concern and if desired , dedicated rib series can be obtained .