Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are stable . No pleural effusion or pneumothorax . Lungs are well - expanded . Small bibasilar patchy opacities are similar appearance to the prior study and may reflect small airways infection or inflammation . Additionally , the upper airways appear thickened with possible bronchiectasis . There is no other focal consolidation concerning for pneumonia . Pulmonary vasculature is within normal limits . The upper abdomen is unremarkable . Mild degenerative changes of the thoracic spine are noted .
    OUTPUT:
    
Small patchy bibasilar opacities , not significantly changed from prior , which may reflect small airways infection or inflammation .