Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are normal . There is no pleural effusion or pneumothorax . The lungs are well expanded and clear without focal consolidation concerning for pneumonia . There is mild increased bronchial wall thickening . Pulmonary vasculature is within normal limits . The upper abdomen is unremarkable . No acute osseous abnormality is detected .
    OUTPUT:
    
No pneumonia . Mild , diffuse bronchial wall thickening , which may indicate bronchitis .