Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lordotic positioning . This may obscure small apical pneumothorax . Allowing for this , no pneumothorax is detected . Again seen are the opacities in the superolateral portions of both the right and left upper lungs , right larger than left . Differences in appearance compared to the conventional frontal view from ___ may be partially accounted for by the considerable differences in positioning . Ill definition of the right upper zone mass could also represent postprocedural change . Elsewhere , the lungs are grossly clear . No CHF or effusion identified .
    OUTPUT:
    
No pneumothorax detected . Please note that given the extreme apical lordotic position , a small pneumothorax might not be apparent .