Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . As seen on the prior exam from earlier today , there is subtle opacity in the left upper lobe which is concerning for pneumonia . In addition , there is subtle increased opacity in the right upper lobe which could represent a second focus of pneumonia . Coarsened reticular markings are noted diffusely which could represent chronic lung disease which has been seen on prior radiographs dating back to from ___ . Cardiomediastinal silhouette is stable . Bony structures appear grossly intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
Coarsened lung markings suggest chronic lung disease with subtle increased opacity in the right upper and left upper lobes concerning for pneumonia .