Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded . There is mild increase in the prominence of pulmonary vasculature from prior exam , without evidence of pulmonary edema . There is no pleural effusion . There is no pneumothorax . The cardiomediastinal silhouette is unremarkable . A VP shunt is seen passing through the right chest .
    OUTPUT:
    
Mild increase in prominence of pulmonary vasculature , without evidence of pulmonary edema .