Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were obtained . Heart is normal size , and cardiomediastinal silhouette is unchanged . Lung volumes have increased , however , right infrahilar opacities persist . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Right infrahilar opacification has not improved and could represent persistent pneumonia .