Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal silhouettes are within normal limits . The bilateral hila are unremarkable . The lungs are clear without focal consolidation . There is no pulmonary vascular congestion . There is no pneumothorax or pleural effusion . An accessory azygos lobe is noted , a normal anatomic variant . There is no evidence of osseous injury or displaced rib fracture .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . No evidence of displaced rib fracture . Note , chest radiography is not sensitive for the detection of subtle or nondisplaced rib fractures . If clinically suspected , recommend dedicated rib radiographs with marker over site of focal pain .