Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The heart is of normal size . The heart apex is silhouetted by a prominent pericardial fat pad . Blunting of the left costophrenic angle is compatible with a small pleural effusion . The right lung appears clear without effusion . No radiopaque foreign body . Osseous structures are unremarkable .
    OUTPUT:
    
Small left pleural effusion . Prominent left pericardial fat pad . Please refer to subsequent CT chest for further details .