Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart is upper limits of normal in size and the thoracic aorta is mildly tortuous . Lung volumes are slightly increased with relative flattening of the hemidiaphragms suggesting the possibility of COPD . Several well - marginated calcifications are present most notably in the periphery of the left upper hemithorax in along the left hemidiaphragm contours , suggestive of calcified pleural plaques . Bilateral healed rib fractures are present and note is made of a asymmetric opacity at the right lung base adjacent to a site of a rib fracture . It is uncertain whether this represents superimposition of healed fractures and adjacent scarring or potentially a discrete lung nodule .
    OUTPUT:
    
A focal air the opacity in right lung base is not fully localized on this portable chest radiograph . Standard PA and lateral chest radiographs are recommended for initial further assessment of this finding .