Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appears unchanged . A smooth partly visualized shadow projecting over the left upper chest is unchanged and appears to represent a stable contour associated with overlying soft tissues . There is similar mild pleural thickening at each lung apex . Otherwise , the lung fields appear clear . The chest is hyperinflated . There is no pleural effusion or pneumothorax . The bones appear demineralized . Similar mild to moderate degenerative changes affect the mid through lower thoracic spine .
    OUTPUT:
    
No evidence of acute cardiopulmonary disease .