Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Cardiomediastinal silhouette and hilar contours are unchanged . There is re- demonstration of pneumomediastinum . Right - sided chest tube has been removed and there has been expansion of the right - sided pneumothorax now moderate in size with slight shift of the mediastinum to the left indicative of a component of tension .
    OUTPUT:
    
Re-expansion of the right apicolateral pneumothorax to moderate in size with mediastinal shift to the left indicative of a component of tension .