Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes . Mild central bronchial wall thickening , similar to prior , likely representing chronic airways disease . No focal consolidation , pleural effusion , or pneumothorax . Heart size and cardiomediastinal contours are normal .
    OUTPUT:
    
Low lung volumes with bronchial wall thickening , similar to prior , likely representing chronic asthma .