Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are poorly inflated . There is mild vascular cephalization but no focal opacities . Cardiomediastinal and hilar contours are unremarkable . There is no pleural effusion or pneumothorax . Bony structures are unremarkable .
    OUTPUT:
    
Mild pulmonary vascular congestion .