It could be
Different types of thyroid cancer
-but generally divided into 2 group-well differentiated and undifferentiated.
Papillary cancer is the most common type of thyroid cancer.Treatment is a surgery to remove thyroid and evaluation to the adjacent lymph nodes. Post surgery radioiodine therapy is given ( to the well diffif) if there is residual disease, +lymph nodes, spreading. Read more-www.Nccn.Com.