Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear stable . There is no pleural effusion or pneumothorax . The lungs appear clear . Lower thoracic spine is difficult to assess due to overlapping soft tissue structures , but there is no indication for new loss in height among any vertebral body .
    OUTPUT:
    
No evidence of acute cardiopulmonary disease or injury .