Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . The mediastinal and hilar contours appear unchanged . Paramedian interstitial changes about the upper mediastinum with medial apical subpleural thickening appear unchanged . What is new is a confluent consolidation projecting over the lateral left lower lobe , compatible with pneumonia . There is no pleural effusion or pneumothorax . Surgical clips project along the upper abdomen . The osseous structures are unremarkable .
    OUTPUT:
    
Opacity in the left lower lobe suggesting pneumonia .