Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged . The aorta is tortuous with atherosclerotic calcifications noted at the knob . The mediastinal contours are otherwise within normal limits . Lungs are hyperinflated without focal consolidation . Prominence of the hila could reflect enlargement of the pulmonary arteries , without evidence for pulmonary vascular congestion or pulmonary edema . No pleural effusion or pneumothorax is identified . There are mild degenerative changes detected in the thoracic spine .
    OUTPUT:
    
No evidence for mediastinal widening . Tortuous aorta with atherosclerotic calcifications at the arch . No acute cardiopulmonary process .