hrp0082fc13.2 | Thyroid | ESPE2014

Thyroid Agenesis and Severe Thyroid Hypoplasia Caused by a New Inactivating TSH Receptor Mutation Ala579Val

Wessel Theda , Handke Daniela , Kleinau Gunnar , Winkler Franziska , Gruters Annette , Kuhnen Peter , Krude Heiko , Biebermann Heike

Background: Congenital thyroid dysgenesis usually occurs sporadically and may even be discordant in monozygotic twins. However, when caused by inactivating mutations in the TSH receptor (TSHR) it can be inherited recessively, typically resulting in thyroid gland hypoplasia. We present a new familial case of thyroid dysgenesis with two siblings of consanguineous parents. The daughter was identified in neonatal screening with severely elevated TSH and thyroid agenesis on ultraso...