Thyroid Gland Oncocytic Follicular Carcinoma (EFO_1000592, an Experimental Factor Ontology entry) is a follicular carcinoma of the thyroid gland, characterized by the presence of large cells with eosinophilic granular cytoplasm and pleomorphic nuclei with prominent, eosinophilic nucleoli. The nuclear features that characterize the papillary carcinomas of the thyroid gland are absent. Also known as: Hurthle cell carcinoma of the thyroid, Hurthle cell carcinoma of the thyroid gland, Hurthle cell carcinoma of thyroid, Hurthle cell carcinoma of thyroid gland, Hurthle cell thyroid gland carcinoma, oncocytic carcinoma of the thyroid, oncocytic carcinoma of thyroid, thyroid Hurthle cell carcinoma.