Cancer Types – Parathyroid Cancer

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Parathyroid Cancer: Overview

Approved by the Cancer.Net Editorial Board, 12/2014

About the parathyroid glands

The parathyroid glands are four small glands located near the thyroid gland in the neck or chest, which is also called the upper mediastinum. They are part of the endocrine system. Like all parts of the endocrine system, the parathyroid glands play an important role regulating hormones in the body. These glands make parathyroid hormone (PTH), which regulates the levels of calcium and phosphorus in the blood.

About parathyroid cancer

Cancer begins when normal cells change and grow uncontrollably, forming a mass called a tumor. A tumor can be cancerous or benign. A cancerous tumor is malignant, meaning it can spread to other parts of the body. A benign tumor means the tumor will not spread. A parathyroid tumor usually develops in one of the four parathyroid glands.

A parathyroid tumor, whether it is benign or malignant, can cause significant effects because the amount of calcium in the blood rises, resulting in a serious condition called hypercalcemia.

Read more about parathyroid cancer here.

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