Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval development of pulmonary vascular congestion without evidence of frank interstitial edema . No discrete focal consolidations are identified . There is no pneumothorax or pleural effusions . The hilar and mediastinal contours are otherwise unremarkable . The heart size is normal .
    OUTPUT:
    
Interval development of pulmonary vascular congestion without evidence of frank interstitial edema . No evidence of pneumothorax or pneumonia .