Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Minimal left basilar pneumothorax , decrease . Left chest tube , new since prior exam . New left perihilar , basilar opacity . Trace pleural effusions . Right lung clear . Mild gastric distention . Postoperative change left lung .
    OUTPUT:
    
Minimal left apical pneumothorax , decreased . New left perihilar , basilar opacity