Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly and tortuosity of the thoracic aorta is similar to prior examination . Hilar contours are unremarkable . Lungs are clear . There is no pleural effusion or pneumothorax . There is no distracted rib fracture . Mild compression deformity of the L1 vertebral body is similar to prior study .
    OUTPUT:
    
No acute cardiopulmonary process .