Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable AP upright chest radiograph demonstrates interval placement of a chest tube within the right hemithorax which medially projects over the midline . Previously seen right pneumothorax is no longer appreciated . Lungs are hyperinflated with flattening of the hemidiaphragms suggestive of emphysematous changes . Cardiomediastinal and hilar contours are within normal limits . No acute osseous abnormalities detected . There is no pleural effusion .
    OUTPUT:
    
Interval placement of right - sided chest tube with apparent resolution of right pneumothorax . Chest tube extends medially to the midline and appears to overlap the mediastinum on this single view .