Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Bilateral upper lobe volume loss is present with elevation of the hila . Nonspecific pleural parenchymal scarring is present at both lung apices , and note is made of a larger asymmetrical opacity in the right upper lobe below the level of the medial right clavicle measuring 2 .4 cm in diameter . This is difficult to confirm on the lateral view , but a project posterior to the trachea partially overlying the aortic arch contour . Lungs are hyperexpanded . Asymmetrical opacity in the left lower lung probably represents asymmetry of the breasts contour on this side . There is no pleural effusion . Bones are diffusely demineralized and note is made of scoliosis .
    OUTPUT:
    
2 .4 cm right upper lobe nodular opacity , for which chest CT may be helpful for further characterization , in order to differentiate a malignant pulmonary lung nodule from a benign process .