Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral images of the chest . The lungs are well expanded and clear . Mild prominence of the pulmonary vasculature is noted . No mass or consolidation is seen . There is no pleural effusion or pneumothorax . Cardiomediastinal silhouette is mildly enlarged , stable from prior exam . Possible mitral annulus calcification is seen .
    OUTPUT:
    
Mild prominence of the pulmonary vasculature .