Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Re - demonstrated blunting of the right costophrenic angle which could be due to effusion or scarring given the mild elevation the right hemidiaphragm . Cardiomediastinal silhouette is within normal limits . There is no focal consolidation .
    OUTPUT:
    
Chronic blunting of the right costophrenic angle may represent a small effusion and / or scarring . Underlying infection can not be excluded .