Thyroid nodules are solid or fluid-filled lumps that form within your thyroid, a small gland located at the base of your neck, just above your breastbone. Most thyroid nodules aren't serious and don't cause symptoms. Only a small percentage of thyroid nodules are cancerous.
Dr. Stack jr., md, facs, face responded: Nodules hypothyroid. The most common cause of low thyroid is autoimmune Hashimoto's thyroiditis . The lumps in the thyroid can and do exist with the Hashimoto's but don't cause the underlying problem.
which is the most common cause of hypothyroidism ... Iodine deficiency, which is very uncommon in the United States, is also known to cause thyroid nodules. HOW IS A THYROID NODULE EVALUATED AND DIAGNOSED? Once the nodule is discovered, your doctor will try to determine whether the rest of your thyroid is healthy or
Hashimoto's disease, a thyroid disorder, can cause thyroid inflammation resulting in nodular enlargement. This often is associated with reduced thyroid gland activity (hypothyroidism). Multinodular goiter. A multinodular goiter contains multiple distinct nodules within the goiter, but its cause is less clear.
A thyroid nodule is a lump that can develop in your thyroid gland. Learn about potential causes of thyroid nodules, from benign tissue overgrowth to cancer.
Thyroid nodules are lumps made up of abnormal clusters of thyroid cells that form in your thyroid gland. The lumps can be solid, a fluid-filled, or a mixture of both. Most thyroid nodules are benign, meaning that they are harmless and generally have no negative effect. In rare cases, however, thyroid nodules can be cancerous.
Thyroid nodules most often do not cause symptoms. However, sometimes the tissue in a nodule makes too much of the thyroid hormones triiodothyronine (T3) and thyroxine (T4), and you may have the following symptoms of hyperthyroidism, which means your thyroid is overactive:
Hyperthyroidism - Most thyroid nodules do not secrete thyroid hormones but some "hot" nodules can actually secrete thyroid hormones which may cause the symptoms of hyperthyroidism. If you have hyperthyroid-esque symptoms then your doctor should evaluate for these hot nodules.
Hyperfunctioning thyroid nodules: These nodules autonomously produce thyroid hormone without regard for normal feedback control mechanisms, which may lead to the development of hyperthyroidism. Hyperthyroidism can affect the heart and cause such problems as sudden cardiac arrest, high blood pressure, arrhythmias (abnormal heart rhythm ...
A toxic thyroid nodule causes hyperthyroidism (an overactive thyroid). This occurs when a single nodule (or lump) grows on the thyroid gland causing it to become enlarged and produce excess thyroid hormones. If the increased hormone production is coming from a single nodule in the gland, this is called toxic adenoma.