Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size remains moderately enlarged . There is widening of the mediastinal contour , increased from prior , with a calcified aorta . Mild pulmonary vascular congestion persists . Streaky bibasilar airspace opacities most likely reflect atelectasis . No large pleural effusion or pneumothorax is identified .
    OUTPUT:
    
Increased medistinal widening for which chest CTA is recommended for further assessment . Mild pulmonary vascular congestion and probable bibasilar atelectasis .