Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Worsening opacification involving the right lower lobe and right middle lobe with associated volume loss , concerning for a postobstructive process in the setting of a prominent and rounded right hilar contour . Small to moderate right pleural effusion has also increased in size . Cardiomediastinal contours are stable , and left lung and pleural surfaces remain clear .
    OUTPUT:
    
Worsening right lower and middle lobe opacities with associated volume loss , concerning for a postobstructive process in the setting of a prominent , rounded right hilar contour . Further evaluation with contrast - enhanced chest CT is recommended to exclude an obstructing right juxta hilar mass .