Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . The mediastinal and hilar contours are unremarkable . There is no pleural effusion or pneumothorax . The lungs appear clear . Moderate degenerative changes affect the thoracic spine . One of two frontal views depicts a comminuted fracture of the proximal right humerus , but better depicted on dedicated radiographs of the same day .
    OUTPUT:
    
No evidence of acute cardiopulmonary disease .