Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right chest tube has been removed . A a small right apical pneumothorax appears to have increased slightly in size . There is persistent streaky density at the lung bases most consistent with subsegmental atelectasis . The patient is status post median sternotomy and MVR as before . A sheath is again demonstrated in the right internal jugular vein .
    OUTPUT:
    
Slight interval increase in right pneumothorax post chest tube withdrawal .