Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left upper lobe consolidation is minimally changed since ___ . Mild bibasilar atelectasis is increased , likely from lower lung volumes on this examination . The heart size is top - normal . There is no pulmonary edema or pleural effusion . There is no pneumothorax .
    OUTPUT:
    
Unchanged appearance of a known left upper lobe consolidation .