Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Two views were obtained of the chest . The lungs are well expanded and clear . There is no pleural effusion or pneumothorax . The heart is normal in size with normal cardiomediastinal contours . Minimal degenerative change is seen in the mid to lower thoracic spine .
    OUTPUT:
    
No acute intrathoracic process .