Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A large caliber hemodialysis catheter terminates in the right atrium , unchanged from prior . Elevation of the right hemidiaphragm is unchanged from prior . Persistent blunting of the right costophrenic angle is suggestive of chronic small effusion . There is unchanged right middle lobe and lower lobe atelectasis . The remainder of the lungs appear clear . There is no confluent consolidation . No overt pulmonary edema is identified . There is no pneumothorax .
    OUTPUT:
    
Unchanged small right pleural effusion and right basilar atelectasis . No change compared to recent prior examination .