Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are slightly low . A small to moderate left pleural effusion may be minimally decreased compared to ___ . Adjacent atelectasis and / or consolidation persists . Lungs are otherwise clear . No pleural effusion on the right . There is no pneumothorax . Cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities identified .
    OUTPUT:
    
Small / moderate left pleural effusion may be minimally decreased compared to ___ .