Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right pectoral pacemaker projects a single lead into the right ventricle . The heart size is normal . The aorta is moderately tortuous . A previously seen left approach central venous catheter has been removed . A tracheostomy tube is appropriately positioned . In comparison to the ___ examination , there is increased left lower zone opacity , localizing the left lower lobe , concerning for small consolidation . Small bilateral pleural effusions are unchanged since ___ . There is no pneumothorax .
    OUTPUT:
    
Small left lower lobe consolidation . Unchanged small pleural effusions .