Fig. 1From: Persistent bilateral pneumothorax after robotic-assisted inguinal hernia repair: possible relevance to recent esophageal cancer surgery — a case reportLeft: A chest radiograph in the upright position before surgery. Right: A chest radiograph in the supine position on postoperative day 0 showing slight bilateral pneumothorax (arrows) and the deep sulcus sign (arrowheads)Back to article page