Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right Port - A - Cath and right chest tube appear intact and unchanged in position . New small right apical pneumothorax . Interval slight widening and prominence of the right paratracheal convexity . Otherwise , expected post-surgical changes in the right hemithorax . Stable smaller lung volumes . Normal heart size . No focal consolidation to suggest pneumonia . No pleural effusion .
    OUTPUT:
    
1 . Slight interval widening of the right mediastinal contour , possibly due to a combination of postoperative changes and known intercostal muscle flap . However , an expanding postoperative blood or fluid collection can not be excluded , and close monitoring and follow - up imaging is recommended . 2 . New , small right apical pneumothorax .