Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs demonstrate clear lungs bilaterally . There is no pneumothorax . Cardiomediastinal and hilar contours are within normal limits . There is no pleural effusion , pneumothorax , or evidence of pulmonary edema . There is no air under the diaphragm .
    OUTPUT:
    
No acute intrathoracic abnormality . No displaced rib fracture . If clinical concern persists , dedicated rib films with radiopaque marker at the site of clinical concern can be considered .