<prompt> All are found is Posterior Mediastinum except:EsophagusAzygos veinThymusSympathetic Trunk  <response>: Ans. C. ThymusThe part behind the pericardium enclosing heart is called posterior mediastinum. Its contents are - Esophagus, thoracic duct, descending aorta, Sympathetic Trunk, Azygos vein, hemiazygos vein, accessory hemiazygos vein, vagus nerve, posterior mediastinal lymph nodes. 