3.5cm well circumscribed T1 hypodense/mildly T2 hyperdense heterogeneously enhancing mass in the T2/T3 left paraspinal space at the superior aspect of the mediastinum.
The mass lies immediately posterior to the origin of the left subclavian artery at its origin. No extension into the left T2/T3 foramen.
The lung and pleura surface is normal.
Normal craniocervical junction. Normal spinal cord.