ThymusManubrium of sternumLeft brachiocephalic veinRight brachiocephalic veinBrachiocephalic trunkLeft phrenic nerveRight phrenic nerveLeft vagus nerveLeft recurrent laryngeal nerveRight vagus nerveLeft common carotid arteryLeft subclavian arteryThoracic ductEsophagusTIIITracheaABLeft common carotid arteryEsophagusLeft subclavian arteryTracheaLeft brachiocephalic veinBrachiocephalic trunkRight brachiocephalic vein