Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low but stable . Bronchial wall thickening projecting over the apex of the heart is worsened . Stable eventration of the right hemidiaphragm . No focal consolidations . The cardiomediastinal and hilar contours are stable . The pleural surfaces are normal .
    OUTPUT:
    
Worsening of bronchial wall thickening suggestive of acute on chronic bronchitis . No evidence of pneumonia .