Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear but hyperexpanded . The descending thoracic aorta is markedly tortuous , however the cardiac and hilar contours are normal . No pleural effusion or pneumothorax . In the partially imaged upper abdomen , air - filled loops of large bowel are noted left upper quadrant . No evidence of traumatic injury to the ribs or thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary process . No evidence of rib fracture or compression deformity of the thoracic spine .