Synonyms

Follicular carcinoma, well differentiated

Definitions

Thyroid gland
ICD-O-3 topography code:	C73
ICD10:	C73

A differentiated adenocarcinoma arising from the follicular cells of the thyroid gland. The nuclear features that characterise thyroid gland papillary carcinomas are absent. It is etiologically linked to radiation and comprises approximately 10% to 15% of thyroid cancers ¹

Ronald A. DeLellis, Ricardo V. Lloyd, Philipp U. Heitz, Charis Eng
World Health Organization Classification of Tumours. Pathology and Genetics of Tumors of Endocrine Organs
IARC Press: Lyon 2004

.
The term follicular adenocarcinoma, well differentiated, is not contained in the 2004 WHO Classification of thyroid tumours ²

Ronald A. DeLellis, Ricardo V. Lloyd, Philipp U. Heitz, Charis Eng
World Health Organization Classification of Tumours. Pathology and Genetics of Tumors of Endocrine Organs
IARC Press: Lyon 2004

. It corresponds to follicular carcinoma.