Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable AP upright chest radiograph shows streaky right perihilar opacity , somewhat improved compared to the most recent prior study of ___ . The left retrocardiac atelectasis seen on that study is now clear . Note that there is no lateral view submitted . Some calcification is seen in the arch of the thoracic aorta . Cardiac size is normal and bones are unremarkable .
    OUTPUT:
    
Residual streaky density where patient had right lower lobe pneumonia in ___ of this year .