Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As noted , the patient is status post plating of three right - sided ribs . The right hemidiaphragm is elevated and the right costophrenic angle is obscured . There is a small right apical pneumothorax , which also tracks along the right lateral chest wall , similar to ___ at 5 :42 a .m . There is right base atelectasis with blunting of the right costophrenic angle and the right hemidiaphragm is elevated , overall similar to prior . The mediastinum remains midline . On the left , no CHF , focal infiltrate , effusion or pneumothorax .
    OUTPUT:
    
Small - to - moderate size right pneumothorax , unchanged compared with ___ .