Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient 's chin obscures evaluation of the medial lung apices . Lung volumes are low . Mild to moderate cardiomegaly is re - demonstrated , with mild tortuosity of the thoracic aorta . Diffuse aortic calcifications are again noted . The pulmonary vascularity is not engorged , and hilar contours are stable . Hyperinflation along with flattening of the diaphragms is re - demonstrated suggestive of underlying COPD . Blunting of the costophrenic angles posteriorly on the lateral view may suggest pleural thickening or trace bilateral pleural effusions . Except for minimal bibasilar atelectasis , there is no focal consolidation . No pneumothorax is detected . Multilevel degenerative changes are seen in the thoracic spine .
    OUTPUT:
    
Mild bibasilar atelectasis and possible trace bilateral pleural effusions versus pleural thickening . Probable COPD .