Thyroid Cancer


Thyroid cancer is a tumor or uncontrolled growth of cells in the thyroid gland. Most lumps, or nodules, on the thyroid gland are benign, but some are malignant and must be treated.

About the Thyroid

The thyroid is a butterfly-shaped gland at the base of the throat. It has two wings, or lobes, one right and one left. These are connected in the middle. The thyroid gland makes, stores, and releases thyroid hormones (called T3 and T4) that affect almost every cell in your body and help regulate your metabolism.

What is Thyroid Cancer?

Thyroid cancer is a cancerous tumour or growth in the thyroid gland. Normally, the replacement of old thyroid cells by newly produced cells is constant and regulated. In some cases, certain cells become abnormal and do not follow the regular cycle of growth. When these abnormal cells continue to grow and reproduce in an uncontrolled way, they form a tumour.

Joan, USA, Thyroid Cancer patient

Additional Information

To learn more about thyroid cancer contact your doctor or other healthcare professionals, or the following patient associations:

Australian Thyroid Foundation Ltd
PO Box 186
Westmead NSW 2145
Phone: (02) 9890 6962
Fax: (02) 9845 7287


Last Updated: 12/12/2014
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