Fig. 2From: Diagnostic value of intraoperative ultrasonography in assessing thoracic recurrent laryngeal nerve lymph nodes in patients with esophageal cancera Right thoracic recurrent laryngeal nerve (RLN) node dissection. b Intraoperative ultrasound image showed the metastatic lymph node 1.25 cm in diameter located in the right RLN region. SCA, subclavicular arteryBack to article page