Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . There has been interval placement of a pigtail right chest tube which enters the right lateral chest wall and is quite old in the right mid chest . The previously noted pneumothorax is decreased though a small right apical pneumothorax persists . No signs of tension .
    OUTPUT:
    
Intervally placed right chest tube with small residual right apical pneumothorax .