Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . There is increase in caliber of the pulmonary vasculature , consistent with congestion . Heart size is normal , as is the mediastinal contour . No pleural effusion or pneumothorax . No evidence of pneumonia .
    OUTPUT:
    
No evidence of pneumonia . Mild pulmonary vascular congestion . No pleural effusions .