Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single AP radiograph of the chest was acquired . The endotracheal tube is appropriately positioned , ending 2 .9 cm above the level of the carina . A left pleural tube is seen terminating at the left lung base . There is a left subclavian catheter ending in the upper SVC . There is no evidence of pneumothorax . Lung volumes are low . There is minimal bibasilar atelectasis . The lungs are otherwise clear . The cardiac and mediastinal contours are normal .
    OUTPUT:
    
1 . Left subclavian central venous catheter ends in the upper SVC . 2 . No pneumothorax .