Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The visualized lung fields are clear without pleural effusion , pneumothorax or focal consalidation . The cardiac and mediastinal silhouette is unremarkable . A left cervical rib is present . No rib fractures are seen .
    OUTPUT:
    
No rib fracture identified . No evidence of acute cardiopulmonary disease .