Thyroid Cancer – Types and Incidences

Majid Ali, M.D.

Thyroid cancers are classified according to the microscopic features of the tumors. Following are major types:

1. Papillary thyroid cancer (75% to 85% of cases)

Often in young females

2. Follicular thyroid cancer (10% to 20% of cases)

3. Medullary thyroid cancer (5% to 8% of cases)-

Arises from parafollicular cells

4. Poorly differentiated thyroid cancer

5. Anaplastic thyroid cancer (less than 5% of cases)

Usually not responsive to treatment

6. Thyroid lymphoma

7. Squamous cell thyroid carcinoma

8. Sarcoma of thyroid

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