Thyroid Cancer

It is important to know that differentiated thyroid cancer, which forms the majority of thyroid cancers, has a good prognosis.

Differentiated thyroid cancers are either papillary or follicular. This differentiation is made on histological grounds, and has little impact on treatment or prognosis.

Medullary carcinoma is an intermediate type of thyroid cancer, somewhere between differentiated and undifferentiated and anaplastic thyroid cancer, which thankfully is very rare, has a very poor prognosis.