Most common cause of hyperparathyroidism: March 2009
Ans. C: Adenoma Hyperparathyroidism causes hypercalcemia through the excessive secretion of parathyroid hormone, usually by an adenoma (benign tumors) of the parathyroid glands (nearly 80%). Chief cell parathyroid hyperplasia accounts for nearly 15% cases.
Carcinoma
Hyperplasia
Adenoma
Familial isolated hyperparathyroidism