A papillary or follicular thyroid gland carcinoma with a genetic component that develops within the same family. Current studies suggest that it is inherited in an autosomal dominant pattern. It is often multifocal and bilateral and usually affects younger patients. The disease is MONDO_0017895 (familial papillary or follicular thyroid carcinoma). Also known as: FNMTC, familial nonmedullary thyroid gland carcinoma, familial pure nonmedullary thyroid carcinoma.