Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Near complete opacification of the left lung is stable in appearance related to chronic left upper lobe collapse and pleural thickening . The left lung is clear . Moderate cardiomegaly . No pneumothorax . Mild scoliosis .
    OUTPUT:
    
Chronic scarring , volume loss and pleural thickening in the left lung partially imaged on recent CTA neck and stable since ___ . No acute pneumonia .