Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size mildly enlarged . The aorta is unfolded . Mediastinal and hilar contours are otherwise unremarkable . Pulmonary vasculature is normal . No focal consolidation , pleural effusion or pneumothorax is identified . Cervical spinal fusion hardware is not well assessed on this exam . Widening of the right acromioclavicular interval may suggest prior trauma . There are moderate multilevel degenerative changes in the thoracic spine
    OUTPUT:
    
No acute cardiopulmonary abnormality .