Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right chest tube has been removed . There is a small right apical pneumothorax measuring no more than 1 cm . Air is seen in the right lateral subcutaneous soft tissues . Right lung volume remains low , with basilar atelectasis . Upper lung is well aerated . There are post-surgical changes at the left apex , with no left pneumothorax , effusion or focal opacity within the left lung to suggest pneumonia .
    OUTPUT:
    
Small right apical pneumothorax following chest tube removal .