Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The cardiac silhouette is mildly enlarged . Mediastinal contours are unremarkable . There is right infrahilar opacity , slightly more prominent as compared to the prior study and underlying consolidation is not excluded . The left lung is clear . There is no pleural effusion or pneumothorax . Overall , the lungs remain relatively hyperinflated .
    OUTPUT:
    
Interval increase in right infrahilar opacity ; underlying consolidation may be present .