Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable supine chest radiograph demonstrate clear lungs bilaterally . There is no pneumothorax or pleural effusion . Cardiomediastinal and hilar contours are within normal limits . Chronic appearing posterior eighth right rib fracture is noted and better appreciated on same date chest CT . There is no air under the right hemidiaphragm . Cervical fusion hardware is noted .
    OUTPUT:
    
No acute intrathoracic abnormality . Healed right eighth posterior rib fracture and cervical fusion hardware noted .