Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear stable . A left lower lobe consolidation has increased substantially in extent . A small coinciding pleural effusion is difficult to exclude . There is probably a trace pleural effusion on the right side at most . There is no pneumothorax .
    OUTPUT:
    
Increased extent of left lower lobe consolidation .