Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Two views were obtained of the chest . Lungs are well expanded and clear . There is no pleural effusion or pneumothorax . The heart is normal in size with tortuous aortic contour . There is a healing , minimally displaced right lateral ninth rib fracture which appears chronic from ___ .
    OUTPUT:
    
No acute intrathoracic process .