Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear stable including perihilar opacities . The chest is again hyperinflated . The lungs again show a heterogeneous bilateral opacification pattern with areas of bronchial wall thickening and bronchiectasis , most suggestive of sequelae of a chronic infectious process . Patchy opacities at both lung bases have increased somewhat , although otherwise , the pattern appears unchanged and the change is mild . There are no pleural effusion or pneumothorax .
    OUTPUT:
    
Suspected mild increase in basilar opacities . The overall appearance suggests a waxing and waning chronic infection or perhaps acute infection superimposed upon chronic infection ( for example acute pneumonia of superimposed on chronic atypical infection such as perhaps atypical mycobacterial infection ) .