Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The mediastinum on this AP radiograph is likely within normal limits with minimal calcification of the aortic arch . Cardiac silhouette is mildly enlarged . There is blunting of the costophrenic angles bilaterally suggestive of trace pleural effusions . Lung volumes are low leading to crowding of the bronchovascular structures and bibasilar atelectasis . There is likely mild pulmonary vascular congestion . Known thyroid goiter causes mild narrowing of the upper airway . The known left upper lobe mass is not well seen on the current exam .
    OUTPUT:
    
Enlarged heart with mild pulmonary vascular congestion . Possible tiny bilateral pleural effusions . No widened mediastinum .