Picture showing the intraoperative setting. The nose lid is fixed with adhesive protection film over the nasal bridge and instruments can slide through the slit cuts the lid adheres to their outer diameter. a The endoscope is inserted through one nostril, i.e., the right. b Three-four hands technique: the endoscope is held by assistant at the most superior aspect of the left nostril and the surgeon holds the instruments inside the right nostril and the suction tube beneath the endoscope