Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without focal consolidation to suggest pneumonia . There is no pleural effusion or pneumothorax . The heart size is top normal . Calcifications are seen within the aortic arch . There are mild degenerative changes of the thoracic spine and acromioclavicular joints .
    OUTPUT:
    
No acute cardiopulmonary process .