Endocrine Abstracts

Recurrent hyperparathyroidism (HPT) refers to reappearance of hypercalcemia after a normocalcemic period of at least 6 months post-parathyroidectomy. Parathyroid carcinoma is a rare cause of primary hyperparathyroidism (pHPT), accounting for 0.4–5.2% of cases. Parathyromatosis is defined as small nodules of hyperfunctioning parathyroid tissue scattered in the soft tissues of the neck and/or mediastinum. We describe two cases with recurrent hypercalcemia after surgical int...