<unk>  refers to any of four kinds of tumors of the<unk>  gland which include papillary, follicular, medullary and anaplastic tumors. Papillary and follicular tumors are the most common and are usually benign.  Papillary and follicular tumors have a slow growth and may recur, but are generally not fatal in patients under 45 years of age. Medullary and anaplastic tumors are malignant.  Medullary tumors have a good prognosis if the are restricted to the<unk>  gland and a poorer prognosis if metastasis occurs.  Anaplastic tumors are fast-growing and respond poorly to therapy.<unk>  nodules are diagnosed by ultrasound guided fine needle aspiration or frequently by<unk> ectomy (surgical removal and subsequent histological examination). As the<unk>  can uptake iodine, radioactive iodine is commonly used for the treatment of<unk>  carcinomas. However, radioactive iodine therapy is accompanied by thyroxine therapy to ensure TSH suppression.
Thyroid cancer
Papillary thyroid cancer
Parathyroid cancer
Medullary thyroid cancer
Follicular thyroid cancer
Anaplastic thyroid cancer
Primary thyroid lymphoma
Thyroid nodule