Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Small hiatal hernia is re - demonstrated . The mediastinal and hilar contours are otherwise unremarkable . Pulmonary vasculature is normal . Extensive bronchiectasis is re - demonstrated predominantly involving both lung bases with bronchial wall thickening and mucous plugging . No pleural effusion or pneumothorax is present . Scarring is noted at the lung apices . No acute osseous abnormalities present .
    OUTPUT:
    
Extensive bibasilar bronchiectasis with mucous plugging . Superimposed infection is difficult to exclude .