Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to the prior study , there are worsened areas of opacification in the bilateral lower lobes , which may represent infection , given the patient 's clinical history . No pleural effusions or pneumothorax . Nodular opacities in the bilateral upper lungs are again noted , similar in appearance in the left upper lung since the chest CT of ___ . The nodular opacity in the right upper lung may reflect scarring . Unchanged old healed right posterior rib fractures .
    OUTPUT:
    
1 . Bilateral lower lobe areas of opacification are slightly worsened since the prior chest radiograph , and may represent an ongoing infectious process , given the clinical history of ABPA . 2 . Bilateral upper lobe nodular opacities are again seen . The left - sided opacity was similar in appearance on the ___ chest CT . The right upper lobe opacity was seen on the chest CT of ___ ( see 600 b : 62 of the prior study ) . These may reflect areas of scarring , given the clinical history . However , if there is concern for malignancy , non urgent chest CT can be obtained for further evaluation and to evaluate for interval stability by CT .