Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . An SVC stent is unchanged in position . The patient is post left pneumonectomy , with fluid throughout the left hemithorax . There is expected leftward shift of the mediastinum . A small right pleural effusion is unchanged . There is no pneumothorax . A right thoracostomy pigtail catheter is no longer visualized .
    OUTPUT:
    
No pneumothorax . Post left pneumonectomy with expected leftward shift of the mediastinum . Unchanged position of an SVC stent .