Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated . There is no consolidation , pulmonary edema , pleural effusion , or pneumothorax . The mediastinal contours are normal . Calcifications are noted along the aortic arch . In the descending aorta , there is mild dilation , which is incompletely characterized . This is not significantly changed from the prior radiograph . The heart size is mildly enlarged .
    OUTPUT:
    
1 . No evidence of pneumonia . 2 . Stable hyperinflation , consistent with COPD , and mild cardiomegaly . 3 . Stable dilated descending thoracic aorta ; if further evaluation is indicated , could obtain a CT of the chest . Results were discussed with Dr . ___ at 11 :40 p .m . on ___ via telephone by Dr . ___ at the time the findings were discovered .