Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Two views were obtained of the chest . The lungs are clear without pleural effusions or pneumothorax . The heart is normal in size with normal cardiomediastinal contours . There is no free air under the right hemidiaphragm . Extensive right acromioclavicular and thoracic spine degenerative changes are seen .
    OUTPUT:
    
No acute intrathoracic process .