| Subtype | Histologic Variants | Incidence |
| Papillary (89.4%) | Conventional/Classic Follicular Variant Tall Cell Solid Diffuse sclerosing Papillary Micro-Carcinoma Oncocytic Columnar Cell Clear Cell Morular Cribriforme Marco-follicular Papillary with HobnailCharateristics Papillarywith stroma similar to fascitis Combined Papillary and Medullary Carcinoma Papillary with dedifferentiation to Anaplastic Carcinoma | 65% - 85% 15% - 20% 5% - 10% 1% - 3% 1% - 2% |
| Follicular (4.6%) | Hurthle (2.0%) |
|
| Poorly Differentiated | Insular |
|
| Medullary (1.7%) |
|
|
| Anaplastic (0.8%) |
|
|
| Others | Lymphoma Squamous Cell Carcinoma Sarcoma Melanoma Metastatic Tumors |
|