Thyroid Cancer
Thyroid cancer develops in your thyroid, a butterfly-shaped gland located at the base of your neck, just below your Adam's apple. Although your thyroid gland is small, it produces hormones that regulate every aspect of your metabolism, from your heart rate to how quickly you burn calories.
Sometimes you may develop one or more solid or fluid-filled lumps called nodules in your thyroid. Most of these are noncancerous (benign) and cause no symptoms. But a small percentage are cancerous (malignant). Serious complications are possible in thyroid cancer.
The prognosis is often excellent for thyroid cancer. The most common types of thyroid cancer can often be completely removed with surgery. But the important first step is to know the symptoms of thyroid cancer and see your doctor.