Thyroid cancer


Thyroid cancer occurs in the cells of the thyroid — a butterfly-shaped gland located at the base of your neck, just below your Adam’s apple.Your thyroid produces hormones that regulate your heart rate, blood pressure, body temperature and weight.Thyroid cancer might not cause any symptoms at first.But as it grows, it can cause pain and swelling in your neck.

Several types of thyroid cancer exist.Some grow very slowly and others can be very aggressive.Most cases of thyroid cancer can be cured with treatment.Thyroid cancer rates seem to be increasing.

Some doctors think this is because new technology is allowing them to find small thyroid cancers that may not have been found in the past.Thyroid cancer typically doesn’t cause any signs or symptoms early in the disease.As thyroid cancer grows, it may cause: If you experience any signs or symptoms that worry you, make an appointment with your doctor.It’s not clear what causes thyroid cancer.Thyroid cancer occurs when cells in your thyroid undergo genetic changes (mutations).The mutations allow the cells to grow and multiply rapidly.The cells also lose the ability to die, as normal cells would.The accumulating abnormal thyroid cells form a tumor.

The abnormal cells can invade nearby tissue and can spread (metastasize) to other parts of the body.Thyroid cancer is classified into types based on the kinds of cells found in the tumor.Your type is determined when a sample of tissue from your cancer is examined under a microscope.The type of thyroid cancer is considered in determining your treatment and prognosis.Types of thyroid cancer include: Factors that may increase the risk of thyroid cancer include: Despite treatment, thyroid cancer can return, even if you’ve had your thyroid removed.This could happen if microscopic cancer cells spread beyond the thyroid before it’s removed.Thyroid cancer may recur in: Thyroid cancer that recurs can be treated.Your doctor may recommend periodic blood tests or thyroid scans to check for signs of a thyroid cancer recurrence.

Doctors aren’t sure what causes most cases of thyroid cancer, so there’s no way to prevent thyroid cancer in people who have an average risk of the disease.Adults and children with an inherited gene mutation that increases the risk of medullary thyroid cancer may consider thyroid surgery to prevent cancer (prophylactic thyroidectomy).Discuss your options with a genetic counselor who can explain your risk of thyroid cancer and your treatment options.A medication that blocks the effects of radiation on the thyroid is sometimes provided to people living near nuclear power plants.

The medication (potassium iodide) could be used in the unlikely event of a nuclear reactor accident.If you live within 10 miles of a nuclear power plant and are concerned about safety precautions, contact your state or local emergency management department for more information.Tests and procedures used to diagnose thyroid cancer include: Your thyroid cancer treatment options depend on the type and stage of your thyroid cancer, your overall health, and your preferences.Most thyroid cancers can be cured with treatment.

Very small thyroid cancers that have a low risk of spreading in the body might not need treatment right away.Instead, you might consider active surveillance with frequent monitoring of the cancer.Your doctor might recommend blood tests and an ultrasound exam of your neck once or twice per year.In some people, the cancer might never grow and never require treatment.

In others, growth may eventually be detected and treatment can be initiated.Most people with thyroid cancer undergo surgery to remove the thyroid.Which operation your doctor might recommend depends on the type of thyroid cancer, the size of the cancer, whether the cancer has spread beyond the thyroid and the results of an ultrasound exam of the entire thyroid gland.Operations used to treat thyroid cancer include: Thyroid surgery carries a risk of bleeding and infection.Damage to your parathyroid glands also can occur during surgery, which can lead to low calcium levels in your body.There’s also a risk that the nerves connected to your vocal cords might not work normally after surgery, which can cause vocal cord paralysis, hoarseness, voice changes or difficulty breathing.

Treatment can improve or reverse nerve problems.After thyroidectomy, you may take the thyroid hormone medication levothyroxine (Levoxyl, Synthroid, others) for life.This medication has two benefits: It supplies the missing hormone your thyroid would normally produce, and it suppresses the production of thyroid-stimulating hormone (TSH) from your pituitary gland.High TSH levels could conceivably stimulate any remaining cancer cells to grow.Radioactive iodine treatment uses large doses of a form of iodine that’s radioactive.Radioactive iodine treatment is often used after thyroidectomy to destroy any remaining healthy thyroid tissue, as well as microscopic areas of thyroid cancer that weren’t removed during surgery.

Radioactive iodine treatment may also be used to treat thyroid cancer that recurs after treatment or that spreads to other areas of the body.Radioactive iodine treatment comes as a capsule or liquid that you swallow.The radioactive iodine is taken up primarily by thyroid cells and thyroid cancer cells, so there’s a low risk of harming other cells in your body.Side effects may include: Most of the radioactive iodine leaves your body in your urine in the first few days after treatment.You’ll be given instructions for precautions you need to take during that time to protect other people from the radiation.For instance, you may be asked to temporarily avoid close contact with other people, especially children and pregnant women.

Radiation therapy can also be given externally using a machine that aims high-energy beams, such as X-rays and protons, at precise points on your body (external beam radiation therapy).During treatment, you lie still on a table while a machine moves around you.

External beam radiation therapy may be recommended if surgery isn’t an option and your cancer continues to grow after radioactive iodine treatment.Radiation therapy may also be recommended after surgery if there’s an increased risk that your cancer will recur.Chemotherapy is a drug treatment that uses chemicals to kill cancer cells.Chemotherapy is typically given as an infusion through a vein.The chemicals travel throughout your body, killing quickly growing cells, including cancer cells.Chemotherapy isn’t commonly used in the treatment of thyroid cancer, but it’s sometimes recommended for people with anaplastic thyroid cancer.Chemotherapy may be combined with radiation therapy.

Targeted drug treatments focus on specific abnormalities present within cancer cells.By blocking these abnormalities, targeted drug treatments can cause cancer cells to die.Targeted drug therapy for thyroid cancer targets the signals that tell cancer cells to grow and divide.It’s typically used in advanced thyroid cancer.Alcohol ablation involves injecting small thyroid cancers with alcohol using imaging such as ultrasound to ensure precise placement of the injection.This procedure causes thyroid cancers to shrink.Alcohol ablation might be an option if your cancer is very small and surgery isn’t an option.

It’s also sometimes used to treat cancer that recurs in the lymph nodes after surgery.Palliative care is specialized medical care that focuses on providing relief from pain and other symptoms of a serious illness.Palliative care specialists work with you, your family and your other doctors to provide an extra layer of support that complements your ongoing care.Palliative care can be used while undergoing other aggressive treatments, such as surgery, chemotherapy or radiation therapy.Increasingly, it’s being offered early in the course of cancer treatment.

When palliative care is used along with all of the other appropriate treatments, people with cancer may feel better and live longer.Palliative care is provided by a team of doctors, nurses and other specially trained professionals.Palliative care teams aim to improve quality of life for people with cancer and their families.A diagnosis of thyroid cancer can be frightening.You might feel as if you aren’t sure what to do next.

Everyone eventually finds his or her own way of coping with a cancer diagnosis.Until you find what works for you, consider trying to: If you have signs and symptoms that worry you, start by seeing your family doctor.If your doctor suspects that you may have a thyroid problem, you may be referred to a doctor who specializes in diseases of the endocrine system (endocrinologist).Because appointments can be brief, and because there’s often a lot of information to go over, it’s a good idea to be well prepared.

Here’s some information to help you get ready, and what to expect from your doctor.Your time with your doctor is limited, so preparing a list of questions can help you make the most of your time together.List your questions from most important to least important in case time runs out.For thyroid cancer, some basic questions to ask your doctor include: If any additional questions occur to you during your visit, don’t hesitate to ask.Your doctor is likely to ask you a number of questions.Being ready to answer them may reserve time to go over points you want to talk about in-depth.Your doctor may ask:.

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