Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is top - normal with trace tortuosity of the thoracic aorta demonstrating mild calcifications at the knob . Lungs are clear . Pleural surfaces are clear without effusion or pneumothorax . Mild compression deformity of a lower thoracic vertebral body is stable compared to prior CT . No overt acute traumatic findings .
    OUTPUT:
    
No acute cardiopulmonary abnormality . No overt acute traumatic findings .