Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again seen is near complete opacification of the left hemithorax , likely secondary to known loculated pleural effusions as seen on prior chest CT . The cardiomediastinal silhouette is shifted to the left , likely reflecting volume loss . Calcifications are seen along the aortic knob . Patchy streaky opacities at the right lung base are likely reflective of atelectasis , with minimal blunting of the right costophrenic angle which could be secondary to a small amount of pleural fluid .
    OUTPUT:
    
1 . Stable near complete opacification of the left hemithorax . 2 . Leftward shift of cardiomediastinal structures , secondary to lung collapse .