First Published Online May 22, 2009 The Oncologist, Vol. 14, No. 6, 571-577, June 2009; doi:10.1634/theoncologist.2009-0046 © 2009 AlphaMed Press
Genetic Aspects of Familial Thyroid CanceraRegional Medical Genetics Centre, Belfast City Hospital, Belfast, United Kingdom; bRegional Centre for Endocrinology and Diabetes, Royal Victoria Hospital, Belfast, United Kingdom Key Words. Thyroid cancer • Familial • RET • Medullary Correspondence: Patrick J. Morrison, M.D., Regional Medical Genetics Centre, Belfast City Hospital HSC Trust, Belfast, BT9 7AB, United Kingdom. Telephone: 44-0-28-9026-3872; Fax: 44-0-28-9023-6911; e-mail: patrick.morrison{at}belfasttrust.hscni.net Received March 12, 2009; accepted for publication April 20, 2009; first published online in THE ONCOLOGIST Express on May 22, 2009.
Disclosures
Familial thyroid cancer is rare, accounting for <10% of thyroid cancer cases. Activating germline point mutations in the RET proto-oncogene are associated with multiple endocrine neoplasia types 2A, 2B, and familial medullary thyroid cancer (FMTC)—around 3% of thyroid cancer cases. Familial papillary thyroid cancer (PTC) and follicular thyroid cancer (FTC) have been identified as a distinct group of familial thyroid cancers. Sporadic nonmedullary thyroid cancer (NMTC) accounts for
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