Endocrine Abstracts

Introduction: Parathyromatosis is a rare cause of recurrent hyperparathyroidism defined as small nodules of hyperfunctioning parathyroid tissue in the soft tissues of the neck or mediastinum. The most common cause is probably the implantation of parathyroid cells into surrounding tissue during surgery and the risk of parathyromatosis increases with repeated parathyroid surgery. There is an overlap in the histologic features in parathyromatosis, atypical adenoma, and parathyroi...

Introduction: Familial and hereditary forms of primary hyperparathyroidism (PHPT) represent a small minority of all patients with PHPT (5 – 10%). The surgical approach is different in such cases than in sporadic PHPT. Hereditary PHPT may be syndromic (multiple endocrine neoplasia: MEN – type 1, 2A or 4 and others) or nonsyndromic (familial isolated PHPT). The aim of the study was to identify and describe hereditary and familial forms of PHPT in patients referred to p...