Alternative Names
Anaplastic carcinoma of the thyroid
Definition of Anaplastic thyroid cancer:
Anaplastic thyroid carcinoma is an aggressive form of cancer of the thyroid gland.
Causes, incidence, and risk factors:
Anaplastic thyroid cancer grows very rapidly and is an invasive type of thyroid cancer. It occurs most often in people over age 60. The cause is unknown. Thyroid function tests are usually normal. Anaplastic cancer accounts for only about 1% of all thyroid cancers and is a very rare disease.
