Common location of thoracic pheochromocytoma:-
Anterior mediastinum
Posterior mediastinum
Middle mediastinum
Superior mediastinum
"The posterior mediastinum is the usual site of intrathoracic pheochromocytoma. They have also rarely been repoed to occur in the middle mediastinum, with involvement of the left atrial wall or interatrial septum and aoic arch"
Thorax And Mediastinum