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PRIMARY PARATHYROID HYPERPLASIA Part of “CHAPTER 48 – MORPHOLOGY OF THE PARATHYROID GLANDS“ CHIEF CELL HYPERPLASIA Chief cell hyperplasia accounts for ˜15% of patients with primary hyperparathyroidism.1,4 Significantly, 25% to…

PATHOLOGY 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%…

ULTRASTRUCTURE Part of “CHAPTER 48 – MORPHOLOGY OF THE PARATHYROID GLANDS“ Electron microscopic studies of parathyroid cells have shown that the chief cells undergo morphologic change caused by the synthesis…

GROSS ANATOMY Part of “CHAPTER 48 – MORPHOLOGY OF THE PARATHYROID GLANDS“ In normal adults, the total weight (mean ± standard deviation) of all parathyroid tissue is 120 ± 3.5…

ANATOMY Part of “CHAPTER 48 – MORPHOLOGY OF THE PARATHYROID GLANDS“ Anatomic studies have attempted to enumerate and localize the parathyroid glands in normal human cadavers.1,2 and 3 Although 80%…

EMBRYOLOGY Part of “CHAPTER 48 – MORPHOLOGY OF THE PARATHYROID GLANDS“ The parathyroid glands develop from the third and fourth pharyngeal (branchial) pouches (see Chap. 53, Fig. 53-4). The third…

MORPHOLOGY OF THE PARATHYROID GLANDS Virginia A. Livolsi EMBRYOLOGY ANATOMY GROSS ANATOMY HISTOLOGY Related posts: DEFINITIONS THYROID-HORMONE RECEPTOR BINDING TO THYROID HORMONE RESPONSE ELEMENTS DISEASE-SPECIFIC VARIATION RADIATION AND THYROID CARCINOMA…

THYROID CANCER Part of “CHAPTER 47 – THYROID DISORDERS OF INFANCY AND CHILDHOOD“ Carcinoma of the thyroid gland in pediatric patients is rare.33 Its incidence has increased since 1951, when…