Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to prior radiograph , there has been interval withdrawal of the left chest tube which now projects adjacent to the left lower mediastinum . Otherwise , lines and tubes are unchanged in position . Lung volumes remain low . There is right greater than left lung opacity . There are small bilateral pneumothoraces . There is no large pleural effusion . Multiple bilateral rib fractures are noted . Again seen , is extensive subcutaneous emphysema . There are severe degenerative changes about the right glenohumeral joint .
    OUTPUT:
    
1 . Small bilateral pneumothoraces . 2 . Interval retraction of the left chest tube which now projects adjacent to the lower of mediastinum .