Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are normal . There is no focal consolidation , pleural effusion or pneumothorax . Mild generalized bronchial wall thickening suggests underlying asthma or bronchial inflammation . Mediastinal contours are within normal limits . Heart size is top - normal .
    OUTPUT:
    
Mild generalized bronchial wall thickening may reflect underlying asthma or bronchial inflammation .