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6 Need to Know Thyroid Cancer Facts

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According to the Thyroid Cancer Survivor’s Association, or ThyCa, thyroid cancer is the leading endocrine cancer, with increased incidence during the past decade. Effecting patients of all ages, symptoms may be difficult to detect in the early stages, but early detection is key. The American Cancer Society approximates approximately 62,450 new cases this year.

Let’s review six need-to-know facts about thyroid cancer and thyroid health…

 

1. Where Does Thyroid Cancer Develop?

Thyroid cancer specifically affects the cells in the thyroid, which is an integral part of the body’s endocrine system. The small butterfly-shaped gland, known as the thyroid, is located just below the voice box (or larynx).

The thyroid is made up of 2 lobes, which resemble butterfly wings in shape. Each lobe rests on either side of the windpipe and is connected by the isthmus (a thin bridge of tissue).

Thyroid

2. Malignant Thyroid Tumors

Malignant thyroid tumors originate in the thyroid cells. There are 2 distinct types of cells in the thyroid—follicular cells and parafollicular cells (or C cells).

When a tumor becomes malignant, or when it metastasizes, it means that the cancer can spread from the thyroid cells to other cells and areas of the body.

Thyroid Disorders

3. Parafollicular Thyroid Cells

Parafollicular cells (or C cells) produce a hormone, known as calcitonin. The body requires calcitonin hormone in order to regulate phosphate and calcium levels in the blood.

Research from John Hopkins Medicine, if the thyroid gland is removed, calcium regulation will not suffer since calcitonin is considered a weak hormone with only a small role in calcium regulation.

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4. Follicular Thyroid Cells

The majority of the thyroid gland is made up of follicular cells. According to research from the John Hopkins Society, the follicular thyroid cells produce hormones needed for every aspect of your metabolism and vital health—such as weight, blood pressure, body temperature, and heart rate.

The follicular cells secrete 2 types of iodine-containing thyroid hormones—T4 (or thyroxine) and T3 (or triiodothyronine). The follicular cells rely on sufficient levels of iodine in order to make thyroid hormones.

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5. Common Thyroid Cancers

According to the Canadian Cancer Society (CCS), papillary thyroid cancer is responsible for roughly 70-percent of all thyroid cancer cases in North America. This occurs with changes to the thyroid cells, which cause malignant tumor development.

The CCS indicates that follicular thyroid carcinoma originates in the follicular thyroid cells and makes up the second leading type of thyroid cancer. Rare thyroid cancers include anaplastic thyroid cancer and medullary thyroid carcinoma, or cancer of the C cells.

thyroid cancer

6. Benign Thyroid Conditions

While many more malignant types of thyroid cancer exist (i.e., sarcoma, lymphoma, and squamous cell carcinoma)—many cases of thyroid cell changes cause benign, or non-cancerous thyroid conditions. According to the Mayo Clinic, changes in the thyroid cells, although not cancerous, can still develop into life-altering conditions—such as hyperthyroidism (an overactive thyroid), hypothyroidism (underactive thyroid).

Hyperthyroidism can be caused by several conditions, including Plummer’s disease (toxic goiter), Graves’ disease (autoimmune), and thyroiditis (inflammation). While symptoms of hypothyroidism can vary depending on the level of hormone deficiency, leading to unexplained weight gain, fatigue, chills, thinning hair, and depression.

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