hormonal and metabolic disorders
Parathyroid Tumors
Introduction
The parathyroid glands are located near the thyroid gland. Their exact location, and even the total number of glands, is quite variable. These glands secreteparathyroid hormone(PTH), which regulates calcium levels in the blood and tissues through its effects on bones, the kidneys, and the intestine. Most parathyroid tumors are benign (not cancerous). Parathyroid tumors secreteparathyroid hormone(PTH) over and above what is normally secreted by the parathyroid glands. Elevated PTH levels, known as Hyperparathyroidism , lead to an increase in the blood level of calcium ( (See also Overview of Parathyroid Function and the figure 