Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear . The cardiomediastinal silhouette , hilar contours and pleural surfaces are normal . No pleural effusion or pneumothorax is present . The lumbar spinal hardware is partially imaged . The known myelomatous lesions are not clearly visible on the current exam . A healed fracture is noted on the right ribs .
    OUTPUT:
    
No acute intrathoracic process .