PT - JOURNAL ARTICLE AU - Sanders, Christopher Davin AU - Kirkland, Jared D AU - Wolin, Ely A TI - Ectopic Parathyroid Adenoma in the Carotid Sheath AID - 10.2967/jnmt.115.170993 DP - 2016 Feb 01 TA - Journal of Nuclear Medicine Technology PG - jnmt.115.170993 4099 - http://tech.snmjournals.org/content/early/2016/02/04/jnmt.115.170993.short 4100 - http://tech.snmjournals.org/content/early/2016/02/04/jnmt.115.170993.full AB - Primary hyperparathyroidism is predominantly caused by a single parathyroid adenoma (1). Knowledge of normal and ectopic locations of parathyroid glands is crucial to help guide surgeons who plan targeted unilateral parathyroidectomy to reduce surgical time and risk. We describe a female patient with clinical primary hyperparathyroidism who underwent a failed initial parathyroidectomy, with subsequent imaging localizing an ectopic parathyroid adenoma in the carotid sheath.