Nonmedullary thyroid cancer (NMTC) refers to neoplasms originating from the thyroid follicular cells and represents 80 to 95% of all thyroid cancers. Approximately 5% of NMTC occurs on the background of a familial predisposition. Although papillary thyroid carcinoma (PTC) is usually the most frequent thyroid lesion in NMTC families, multinodular goiter (MNG) and follicular thyroid adenoma also occur (summary by Pereira et al., 2015).
For a general phenotypic description and a discussion of genetic heterogeneity of NMTC, see NMTC1 (188550). [from
OMIM]