Fig. 1From: Thoracoscopic esophagectomy with left recurrent laryngeal nerve monitoring for thoracic esophageal cancer in a patient with a right aortic arch: a case reportPreoperative upper gastrointestinal endoscopy findings. Endoscopic findings before treatment. A lesion was found in the middle thoracic esophagus, and biopsy revealed the diagnosis of squamous cell carcinomaBack to article page