Primary hyperparathyroidism (PHPT) causes elevated blood calcium levels (hypercalcemia) through the excessive secretion of parathyroid hormone (PTH), usually from a benign tumor of the parathyroid glands.
Primary hyperparathyroidism (PHPT) causes elevated blood calcium levels (hypercalcemia) through the excessive secretion of parathyroid hormone (PTH), usually from a benign tumor of the parathyroid glands.