Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Hyperinflated lungs with vascular deficiency in the upper lobes suggest Left upper lung opacity corresponds to known left juxta hilar mass , better characterized on same - day and prior chest CT . Moderate right pleural effusion , with possible loculation . No appreciable effusion on the left . No pneumothorax . No focal consolidation . Bibasilar opacities suggest , though infection can not be excluded in the proper clinical context . Mild tortuosity of the thoracic aorta . Otherwise , mediastinal and hilar contours are unremarkable . Heart size is normal .
    OUTPUT:
    
1 . Moderate right pleural effusion with possible loculation , better characterized on same - day chest CT . 2 . Bilateral lower lobe opacities suggest atelectasis , though aspiration or infection can not be excluded . 3 . Hyperinflated lungs with vascular deficiency in the upper lobes , suggestive of emphysema . 4 . Left upper lung opacity corresponds to known left juxta hilar mass , better characterized on multiple prior chest CTs .