Part of “CHAPTER 48 – MORPHOLOGY OF THE PARATHYROID GLANDS“

Most patients with primary hyperparathyroidism harbor a parathyroid adenoma (see Chap. 58); usually, a single adenoma occurs in ˜80% of patients.1,4,12,13 Occasionally, multiple adenomas are found either at surgery or after the “single” adenoma is removed. These cases most likely represent asynchronous parathyroid hyperplasia.