Persistent right lower lobe opacity with associated obliteration of the right lateral costophrenic angle, which may suggest chronic or recurrent pneumonia with effusion, scarring, or chronic/post-aspiration changes. An underlying mass cannot be entirely excluded.
Pleural scarring (Uncertain) Pneumonia (Uncertain) Simple pleural effusion (Uncertain) Aspiration (Uncertain) Mass/Solitary lung mass (Uncertain)