Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Left chest wall pacer device is again seen with leads extending into the region of the right atrium and right ventricle . Cardiomediastinal silhouette is stable . New blunting at the left CP angle on the frontal view only could reflect a small effusion though no corresponding finding on the lateral view . No radiopaque foreign body is seen . No evidence of pneumomediastinum . No pneumothorax . Right lung is clear . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
New small left pleural effusion . No radiopaque foreign body .