Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The endotracheal tube is in adequate position at 3 .2 cm above the carina . The left subclavian line projects in the upper superior vena cava . There is a left chest tube that projects adjacent to the lower trachea . There is mild atelectasis and possible pleural effusion at the costodiaphragmatic angle on the left side . Small amount of subcutaneous air on the left . Unchanged position of the TNG tube . There is no pneumothorax and the cardiac and mediastinal contours are normal .
    OUTPUT:
    
There is no significant change since the previous exam .