Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP single view of the chest has been obtained with patient in sitting semi-upright position . Comparison is made with the next preceding preoperative chest examination of ___ . Moderate cardiac enlargement as before . The patient is status post VATS procedure and a left - sided chest tube is identified , seen to advance to the left lower chest wall and the tip reaching the apical area . The pulmonary vasculature demonstrates ordinary aeration in the left upper lobe and no pneumothorax can be identified surrounding the tip of the chest tube . No new infiltrates are seen . Right - sided hemithorax is unchanged and unremarkable .
    OUTPUT:
    
Chest tube in appropriate position , no pneumothorax .