Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright AP chest radiograph was provided . Patient is status post left lower lobe wedge resection . Chain sutures and post-surgical changes are present in the left lower lung fields . A left chest tube terminates at the apex where there is a small apical pneumothorax . The right lung is clear . There are no pleural effusions . A VP shunt catheter is partially visualized coursing down the right hemithorax . The cardiac silhouette is normal .
    OUTPUT:
    
Small left apical pneumothorax status post left lower lobe wedge resection .