Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube appears in place at the mid trachea . Enteric tube traverses to the stomach . Left - sided chest tube is noted with tip at the upper portion of the left lung . Left apical pneumothorax is likely smaller and not clearly appreciated . Lung aeration appears improved . Bibasilar opacities consistent with atelectasis are again noted . Cardiac and mediastinal silhouettes remain stable . Post-surgical changes are partially visualized in the spine with vertical rods and horizontal screws .
    OUTPUT:
    
Improved aeration of the lungs with appropriate position of lines and tubes . Known left apical pneumothorax is less appreciated on today 's study .