Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear . There is no pneumothorax , pleural effusion , pulmonary edema , or focal airspace consolidation . Minimal linear atelectasis is present in the left lung base . The cardiomediastinal silhouette is unremarkable . No displaced rib fractures are identified .
    OUTPUT:
    
No radiographic evidence of displaced rib fracture . If clinical concern remains for radiographically occult fracture , dedicated rib series radiographs or CT of the chest is recommended . No acute cardiopulmonary process .