What Are the Different Types of Goiter?

The thyroid can become enlarged for a variety of reasons.
A thyroid enlargement that is present at the time of birth is called a congenital goiter.
Most goiters are small and will only be noticed by a doctor during a physical exam.
Iodine deficiency is the leading cause of goiters.
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  • Written By: Rebecca Harkin
  • Edited By: Allegra J. Lingo
  • Last Modified Date: 03 December 2014
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Thyroid goiters refer to enlargement or swelling of, as well as growths on, the thyroid gland. These goiters can be broken into different types based on the cause of the goiter and the shape. The main types of goiters are simple endemic, simple sporadic, toxic, myxedema, congenital, and thyroid cancer. Goiters typically develop as either a diffuse goiter with uniform thyroid gland enlargement or as a nodular goiter with asymmetric lumps forming on the thyroid. Most goiters are small and are only discovered through a physical exam, but if an enlarged thyroid gland left untreated it can swell to protrude from the neck.

A non-cancerous enlargement of the thyroid gland is called a simple goiter and can form as a diffuse or as a nodular goiter. Simple goiters come in two sub-types, endemic and sporadic. An endemic goiter, also sometimes referred to as a colloid goiter, is cause by an iodine-deficient diet. Iodine is used in the production of thyroid hormone and when there is a dearth of iodine, the thyroid gland becomes enlarged to off-set the decreased production of thyroid hormone. Sporadic thyroid enlargement, also known as nontoxic goiters, are caused by certain drugs, regularly consuming anti-thyroid substances, genetics, or the cause can be unknown.

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Toxic goiters are an enlargement of the thyroid gland resulting from an overproduction of the thyroid hormone, a condition called hyperthyroidism. These enlargements can develop as diffuse or nodular. Graves’ disease is the most common form of diffuse, toxic thyroid enlargement, and is caused when antibodies attack the thyroid gland. Myxedema is a type of goiter caused by the underproduction of thyroid hormone, a condition known as hypothyroidism. Hashimoto’s thyroiditis, a common form of hypothyroidism, is caused by an autoimmune attack on the thyroid which decreases thyroid hormone production.

When a thyroid enlargement, either diffuse or nodular, is present at the time of birth, it is called a congenital goiter. These types of thyroid enlargements are caused by a birth defect which results in irregular production of thyroid hormone, or they are caused by the mother passing anti-thyroid substances or maternal antibodies to the baby via the placenta. Thyroid cancer is rare, but it can produce nodular thyroid goiters. The cause of thyroid cancer is unknown, but several factors, such as heredity, radiation exposure, and Hashimoto’s thyroiditis can increase a person’s risk. Any nodular thyroid growth is typically biopsied to be certain it is benign.

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ZipLine
Post 3

@turkay1-- I have a non-toxic goiter on my throid and I'm on hormone therapy for it. I just take synthetic thyroid in tablet form.

I don't know if all non-toxic goiters are caused by this but mine is due to the overproduction of TSH hormone by the pituitary gland. The medication I take suppresses TSH and reduces the size of the goiter.

candyquilt
Post 2
What treatments are given for non-toxic goiter?

I found out over the phone from the nurse that I have non-toxic goiter. I have an appointment next week with my doctor to discuss treatment.

I'm worried and impatient about this diagnosis and would like to find out as much information as possible about possible treatments.

Anyone else have non-toxic goiter? What treatment are you receiving?

bear78
Post 1

I have hypothyroid disorder. As soon as my thyroid hormone levels came back low in blood tests, my doctor sent me to get an ultrasound. She said she felt a lump in my throat and wanted to make sure that I don't have a goiter.

I got the ultrasound and thankfully, I don't have a goiter or nodules. I just have some inflammation in my thyroid.

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