Differentiated thyroid cancer
Thyroid cancer can be ‘differentiated’ or ‘undifferentiated’. ‘Differentiated’ means the cancer cells still look like normal thyroid cells in appearance. They do not spread as rapidly as the undifferentiated type of cancer cells. ‘Undifferentiated’ cells look very different from normal thyroid cells. Papillary and follicular thyroid cancers are both differentiated. They are usually highly treatable.