Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low , numerous monitoring devices project over the chest wall . There is a right - sided chest tube in - situ . No definite pneumothorax is seen . Left lower lobe atelectasis . Visualization of the left costophrenic angle is suboptimal but no definite pleural effusion seen . Tiny amount subcutaneous emphysema at the right costophrenic angle . An airspace opacity in the right upper lung is consistent with postoperative change , surgical clips are seen in this area .
    OUTPUT:
    
No convincing evidence of a pneumothorax .