Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate right pneumothorax is not significantly changed from study obtained four hours prior . Right - sided chest tube is in unchanged position . Right internal jagular venous catheter projects over mid SVC . Ill - defined opacity in the right lung base likely represents atelectasis . Left lung is well expanded and is clear . There is no left pneumothorax or pleural effusion . Hilar and mediastinal silhouettes are unremarkable . Heart size is normal . Right hemidiaphragm elevation persists since ___ exams . Hardware overlying fractured right - sided ribs is noted .
    OUTPUT:
    
1 . Moderate right pneumothorax is unchanged from exam obtained four hours prior . 2 . Elevation of the right hemidiaphragm persists since ___ exams ; may signify diaphragmatic injury , which was presumably excluded at the time of surgery . Findings discussed with Dr . ___ at 10 :30 a .m . ___ .