CT scan ectopic parathyroid adenoma

CT scan of ectopic parathyroid adenoma. Small soft-tissue mass (arrow) in the anterior mediastinum.

A: aorta; a: major branches of the aorta; v: brachiocephalic veins.

Reproduced with permission from: Eisenberg, RL. Clinical Imaging: An Atlas of Differential Diagnosis, Fourth Edition. Philadelphia: Lippincott Williams & Wilkins, 2003. Copyright © 2003 Lippincott Williams & Wilkins.