Differential diagnosis of posterior mediastinal mass

Differential diagnosis of posterior mediastinal mass
-extramedullary hematopoiesis 
-thoracic spine disease
-foramen of Bochdalek hernia 
-esophageal tumor 
-neurogenic tumor such as neurilemmoma, neurofibroma, neurosarcoma, pheochromocytoma, ganglioneuroma) 
-hiatal hernia 
-meningocele