Causes of cysts on the thyroid gland include a family history of thyroid nodules, iodine deficiency and thyroid cancer, according to Cleveland Clinic. Thyroid cancer is a rare cause of thyroid cysts and is found in less ... More »

A thyroid cyst is a type of thyroid nodule filled or partially filled with fluid, according to Cleveland Clinic. Cysts form inside the thyroid gland. More » Health Conditions & Diseases

Thyroid calcification is the formation of a lump within the thyroid gland, according to WiseGeek. The condition results from a hormonal disruption within the thyroid gland that allows for an accumulation of calcium salts... More »

The purpose of thyroid surgery is to remove all or part of the thyroid gland to treat thyroid nodules, hyperthyroidism or thyroid cancer, according to WebMD. It may also be performed to take a tissue sample to check for ... More » Health Conditions & Diseases

Many conditions can cause the development of nodules in the thyroid gland, including iodine deficiency, overgrowth of thyroid tissue, cysts, inflammation of the thyroid and the development of a goiter, according to Mayo ... More »

Mayo Clinic notes that a thyroid can become enlarged due to iodine deficiency, Graves’ disease, Hashimoto's disease, inflammation, pregnancy, multinodular goiter, thyroid cancer or solitary thyroid nodules. The American ... More » Health Conditions & Diseases

The difference between a thyroid cystic mass, also know as a thyroid cyst, and complex thyroid nodules is that thyroid cysts are liquid-filled sacs, while nodules can be solid lumps. Cysts and nodules do not necessarily ... More »