The parathyroid glands are small oval structures, yellowish-brown in color, and separated from the thyroid gland by a thin connective tissue capsule. But, sometimes, the parathyroid gland may be embedded in the thyroid gland.
Under these circumstances, an upper parathyroid will actually be found WITHIN the thyroid gland. This picture shows the right half of the thyroid gland of a recently operated patient. I cut the thyroid in half to demonstrate the large parathyroid tumor (adenoma) which was inside the thyroid.
The parathyroid is a set of four glands located in your neck, just behind the thyroid gland. Parathyroid glands are responsible for regulating the calcium and phosphorus levels in your body. In order to manage the amount of these minerals, the parathyroid uses the parathyroid hormone (PTH).