Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are normal and unchanged . Lung volumes are low . Opacities in the right juxta hilar region have improved , however opacity in the right upper lobe appears slightly worse from the prior . Additionally , left perihilar opacities have improved however there is worsening opacity at the left base . No pleural effusion or pneumothorax is seen .
    OUTPUT:
    
1 . Improved opacities in the right juxta hilar region and in the left perihilar region , but slightly worsened opacities in the right upper lobe and at the left base . In a patient with granulomatosis with polyangiitis and lupus , these may represent hemorrhage and / or asymmetrical pulmonary edema . 2 . Consider CT for more complete characterization , especially considering history of pulmonary fibrosis .