Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without focal consolidation or pneumothorax . A small left pleural effusion with adjacent atelectasis is similar to ___ . Linear atelectasis is seen at the right lung base . Heart size is normal . Mediastinal silhouette and hilar contours are stable . The left percutaneous nephrostomy catheter is noted . Lumbar spinal hardware is incompletely imaged .
    OUTPUT:
    
Small left pleural effusion is unchanged . No new opacity .