Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right subclavian central venous catheter , Swan - Ganz catheter , endotracheal tube , nasogastric tube and left chest tube are unchanged in position . There is persistent retrocardiac and left basilar opacification with deep sulcus sign on the left suggesting a combination of atelectasis and pneumothorax , although superimposed infection is not excluded . A small left apical pneumothorax is also present . Multiple rib fractures are re-demonstrated . The cardiomediastinal and hilar contours are within normal limits .
    OUTPUT:
    
Left apical and basilar pneumothoraces with probable left basilar atelectasis .