domingo, 20 de mayo de 2012

Parathyroid Disorders: MedlinePlus [NEW TOPIC PAGE]

Parathyroid Disorders: MedlinePlus

A service of the U.S. National Library of Medicine
From the National Institutes of HealthNational Institutes of Health

Parathyroid Disorders

Most people have four pea-sized glands, called parathyroid glands, on the thyroid gland in the neck. Though their names are similar, the thyroid and parathyroid glands are completely different. The parathyroid glands make parathyroid hormone (PTH), which helps your body keep the right balance of calcium and phosphorous.
If your parathyroid glands make too much or too little hormone, it disrupts this balance. If they secrete extra PTH, you have hyperparathyroidism, and your blood calcium rises. In many cases, a benign tumor on a parathyroid gland makes it overactive. Or, the extra hormones can come from enlarged parathyroid glands. Very rarely, the cause is cancer.
If you do not have enough PTH, you have hypoparathyroidism. Your blood will have too little calcium and too much phosphorous. Causes include injury to the glands, endocrine disorders or genetic conditions. Treatment is aimed at restoring the balance of calcium and phosphorous.
NIH: National Institute of Diabetes and Digestive and Kidney Diseases

05/15/2012 08:00 PM EDT

Source: National Institute of Diabetes and Digestive and Kidney Diseases - NIH

Illustration of the thyroid showing the parathyroid glands

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National Institutes of Health


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