Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with the most recent prior film , the overall appearance is probably similar . The right - sided pigtail is again seen . There is prominence the right hilum , which is likely related to the patient 's known hilar mass . Question minimal increased patchy opacity in the right mid zone laterally , immediately above the slightly thickened minor fissure . Minimal atelectasis at the right base and slight prominence of the right paratracheal soft tissues . No definite pneumothorax is identified The left lung is grossly clear , without pneumothorax without obvious pneumothorax . Minimal atelectasis left lung base is noted , but improved .
    OUTPUT:
    
No gross change compared 1 day earlier . Question minimal increased hazy opacity in the right mid zone laterally --___ this area on followup films is requested . No obvious pneumothorax detected in the right lung . Possibility of a tiny occult pneumothorax can not be entirely excluded . No right pleural effusion identified .