Hyperparathyroidism3-7-11.docx - Hyperparathyroidism Tshona...

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Hyperparathyroidism Tshona Corbin Primary hyperparathyroidism causes hypercalcemia, while secondary hyperparathyroidism results from the appropriate responsive release of extra PTH due to low serum calcium levels. Tertiary hyperparathyroidism exists-it is a state of excessive secretion of PTH after long- standing secondary hyperparathyroidism. This results in hypercalcemia. It is relatively uncommon and not further addressed here. Primary Hyperparathyroidism Secondary Hyperparathyroidism Cause Autonomous, spontaneous over production of PTH. Common causes of the underlying lesions are adenoma, primary hyperplasia, and parathyroid carcinoma. Women: men is 4:1 Incidence is 25/100,000 in U.S. Most cases occur over the age of 50 yrs Caused by any condition that give rise to chronic hypocalcemia, which leads to compensation overactivity of the parathyroid glands. Most common cause is chronic renal insufficiency. *Chronic renal insufficiency is
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Hyperparathyroidism3-7-11.docx - Hyperparathyroidism Tshona...

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