Fig. 2From: Thoracoscopic resection of paraesophageal ectopic mediastinal parathyroid adenoma in the superior posterior mediastinum: a case reportOperative imaging. (A) Posterior mediastinal mass is seen abutting the right innominate vein(arrow). (B) The operative port was placed in the right midaxillary line in the fourth intercostal space(Yellow protective ring)Back to article page