NCIt synonyms : Parathyroid Adenoma; Adenoma of the Parathyroid Gland; Adenoma of Parathyroid;
NCIt definition : A neoplasm arising from the parenchymal cells of the parathyroid glands. In the vast
majority of cases, the tumor involves a single parathyroid gland. It is associated
with the symptoms of primary hyperparathyroidism, resulting from the excessive production
of parathyroid hormone. It is usually surrounded by a well-defined capsule. Capsular
invasion, vascular invasion, and perineural invasion are absent. Overall cure rates
are excellent following excision of the abnormal gland(s).;
NCIt note : See 'Benign Parathyroid Gland Adenoma(C156757)';