I. Thyroid epithelial tumours
A. Thyroid tumors of follicular or metaplastic epithelium
thyroid follicular tumors
- thyroid follicular adenoma
- thyroid follicular carcinoma (TFC)
- thyroid oncocytic tumors (Hurthle cell tumors)
thyroid papillary carcinoma (TPC)
- papillary microcarcinoma
- follicular variant
- diffuse sclerosing variant
thyroid undifferentiated tumors (thyroid anaplastic tumors)
thyroid poorly differentiated thyroid carcinoma
thyroid columnar cell carcinoma
thyroid mucoepidermoid carcinoma
others thyroid adenomas
B. Tumors showing c-cell differentiation
thyroid medullary carcinoma
C. Tumors showing both follicular and C-cell differentiation
mixed medullary-follicular carcinoma
D. Thymic and related branchial pouch tumors of the thyroid
SETTLE (spindle epithelial tumor with thymus-like differentiation)
II. mesenchymal tumors of the thyroid
III. thyroid lymphomas
IV. Miscellaneous tumours
Classification
Hurthle cell tumors
- C cell hyperplasia
- medullary thyroid carcinoma
See also
thyroid tumorigenesis