Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Similar to scout image from ___ , there is large area of opacity in the right upper hemi thorax in right perihilar region concerning for postobstructive pneumonia secondary to known large juxta hilar mass . The left lung remains hyperinflated . No large pleural effusion is seen . There is no evidence of pneumothorax . The cardiac and mediastinal silhouettes are unremarkable .
    OUTPUT:
    
Large area of right upper hemi thorax and right juxta hilar opacity , grossly similar in distribution as compared to the prior CT , although with possibly slightly more fluid in the right lung apex , overall worrisome for postobstructive pneumonia secondary to right juxta hilar mass . Reported right chest wall metastasis on prior CT better assessed on CT .