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. 2022 Jun 4;10:40. doi: 10.1186/s40364-022-00382-4

Table 1.

Histopathological classification of thyroid cancer

Thyroid cancer 
  ➣ Follicular origin
    ● Undifferentiated
        ✦ Anaplastic thyroid cancer
    ● Differentiated
      ▪ Well differentiated
        ✦ Papillary thyroid cancer
        ✦ Follicular thyroid cancer
        ✦ Hurthle cell cancer
      ▪ Poorly differentiated
  ➣ Para follicular origin
        ✦ Medullary thyroid cancer