Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided pneumothorax that measured 1 .6 mm on chest CT has progressed to 2 .6 cm . Multiple right - sided acute rib fractures are unchanged . There is also a displaced distal right clavicular fracture . Healed posterior seventh left rib fracture is stable . Atelectasis at right lower lung is unchanged . Stomach is distended .
    OUTPUT:
    
Patient is known with trauma and multiple fractures . Right - sided pneumothorax has progressed from 1 .6 mm on CT two days ago to 2 .6 cm today . This has been discussed with ___ , a resident in charge of the patient .