Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly is re- demonstrated . The mediastinal contour is unchanged with tortuosity of the thoracic aorta again noted . The thoracic aorta is diffusely calcified . Mild pulmonary vascular congestion is demonstrated . Streaky bibasilar airspace opacities may reflect areas of atelectasis . Blunting of the costophrenic angles bilaterally likely reflects chronic pleural thickening . No focal consolidation or pneumothorax is seen . There are moderate degenerative changes noted in the thoracic spine .
    OUTPUT:
    
Mild pulmonary vascular congestion with bibasilar atelectasis .