Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged . The aorta is diffusely calcified . Lungs are hyperinflated with scarring noted within the lung apices . Streaky atelectasis is seen in both lung bases as well as more focal linear atelectasis noted in the region of the lingula as seen on the lateral view . Blunting of the costophrenic angles could suggest small bilateral pleural effusions or chronic pleural thickening . Pulmonary vasculature is not engorged . There is no focal consolidation . No pneumothorax is detected . Osseous structures are diffusely demineralized with mild multilevel degenerative changes noted in the thoracic spine .
    OUTPUT:
    
Bibasilar atelectasis . Blunting of the costophrenic angles bilaterally may reflect trace bilateral pleural effusions versus chronic pleural thickening . COPD .