Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A coiled drainage catheter drainage catheter remains in place at the anterior right basal pleural space . The small partially loculated right pleural effusion is not significantly changed in size since the study of 5 days ago . The right fifth posterior rib and part of the right sixth rib have been resected . However , there is new cortical displacement at the lateral aspect of the right fourth posterior rib , which raises concern for a new fracture . The left lung is clear . There is no pneumothorax . Right basilar atelectasis is slightly increased .
    OUTPUT:
    
Unchanged partially loculated right pleural effusion with pigtail catheter in place . New nondisplaced right fourth posterior rib fracture .