Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been no interval change since the most recent chest radiograph from ___ . The endotracheal tube is unchanged in position . Posterior spinal hardware is partially visualized . There is persistent left lower lobe collapse . The soft tissue mass overlying the left hemithorax is again visualized . There is no pneumothorax . A left the most previous ultrasound at .
    OUTPUT:
    
Persistent left lower lobe collapse . Findings are unchanged since ___ .