Familial medullary thyroid carcinoma and prominent corneal nerves associated with the germline V804M and V778I mutations on the same allele of RET

Abstract

Editor—Germline mutations in the RET proto-oncogene are associated with multiple endocrine neoplasia (MEN) type 2A, 2B, and familial medullary thyroid carcinoma (FMTC). MEN 2A is characterised primarily by medullary thyroid...