Mediastinal Neuro-Endocrine Tumor

Man 62 y/o with chest pain and newly formed tissue in the left anterior superior mediastinal lodge.
Fine marginal irregularities (adventitial invasion?) of:
* left common carotid artery,
* left subclavian artery,
* brachial-Cephalic Trunk,
* transverse portion of Aortic Arch.