Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A frontal semi upright view of the chest was obtained portably . The endotracheal tube ends 4 .2 cm above the carina . Nasogastric tube follows the expected course although the tip is not visualized . The left internal jugular catheter ends at the brachiocephalic SVC confluence . Left basilar pneumonia is slightly improved . Right basilar atelectasis persists . No pneumothorax or pleural effusion .
    OUTPUT:
    
Slight improvement in left lower lobe pneumonia .