Fig. 4From: Preliminary evidence for endoscopic surgery combined with postoperative anti-PD-1 immunotherapy in advanced recurrent nasopharyngeal carcinomaReconstruction of skull base defect after salvage endoscopic nasopharyngectomy for locally advanced recurrent nasopharyngeal carcinoma. A and B Middle turbinal flap; C and D septum mucosa flap; and E and F temporal muscle flapBack to article page