Endocrine Abstracts

Introduction: The basis of treatment of primary hyperparathyroidism (pHPT) is parathyroidectomy of the responsible lesion, and thus, preoperative localization is important. Ectopic parathyroid adenomas are rare, and they can be accounted for persistent or recurrent hyperparathyroidism. An intrathyroidal parathyroid adenoma (IPA) is an ectopic variant where the adenoma is either partly (>50%) or completely enveloped by the thyroid gland. The incidence of IPAs ranges from 0....