Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Lungs are hyperinflated . A port projects over the left upper abdomen . In the right upper lung there is a subtle opacity projecting over the right sixth posterior rib arch , likely overlapping os ossific structures though difficult to exclude an underlying nodule . Biapical pleural parenchymal scarring is noted . Lungs otherwise clear . Cardiomediastinal silhouette is normal . Bony structures are intact .
    OUTPUT:
    
Subtle opacity projecting over the right upper lung , likely overlapping densities though difficult to exclude a true pulmonary nodule . Consider nonemergent CT to further assess .