Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As seen on the lateral view is increased opacity projecting over the ascending aorta which between the two lateral views does slightly change but persist . This likely localizes to the suprahilar region on the left on the frontal view . Elsewhere , lungs are clear , there is no effusion or pneumothorax . Cardiomediastinal silhouette is within normal limits . Degenerative changes noted in the spine .
    OUTPUT:
    
Focal opacity projecting over the left upper lobe in the suprahilar region on the frontal view which could represent pneumonia in the proper clinical setting .