Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest demonstrate the lungs are well expanded and clear . The cardiomediastinal silhouette is unremarkable . The heart is normal in size . There is no pleural effusion , pulmonary edema , pneumothorax or focal air space opacity . The bony structures appear intact , with no evidence of displaced rib fracture .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . No evidence of displaced rib fracture on these PA and lateral views . If clinical suspicion remains for non-displaced rib fracture , a dedicated rib series or chest CT is recommended .