Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is top - normal . The aorta is tortuous . There is mild pulmonary vascular congestion , otherwise the hilar and mediastinal contours are unremarkable . The lung volumes are low with mild bibasilar atelectasis however no focal consolidations concerning for pneumonia are identified . There is no large pleural effusion or pneumothorax . The visualized osseous structures are unremarkable .
    OUTPUT:
    
Mild pulmonary vascular congestion . No focal consolidations concerning for pneumonia identified .