Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral chest radiographs were obtained . Comparison is made to prior radiograph dated ___ . There is persistent shifting to the right of the cardiomediastinal structures which are otherwise unchanged in appearance . Within the left lower lung zone , there is an opacification concerning for pneumonia . Additional note is made of bronchial wall thickening which may reflect a component of bronchitis . Obliteration of bilateral costophrenic angles suggests a pleural effusion .
    OUTPUT:
    
Left lower lobe opacity concerning for pneumonia . Thickening of the bronchial walls is additionally suggestive of bronchitis .