Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . Two thick - walled cavitary lesions in the right upper lobe are similar to the most recent prior exam , though increased since ___ . Scarring and atelectasis in the right lung base is unchanged with evidence of right lung volume loss . Right apical pleural thickening and scarring is redemonstrated . No new consolidation , cavitary lesion , pleural effusion , or pneumothorax . Heart size and cardiomediastinal contours are normal .
    OUTPUT:
    
Stable appearance of right upper lobe thick - walled cavitary lesions , the differential for which includes mycobacterial infection or malignancy . No new consolidation or cavitated mass .