hrp0082p1-d1-138 | Growth | ESPE2014

A Novel Homozygous Mutation of the IGF1 Receptor Gene (igf1r) in Two Siblings with Severe Short Stature, Intellectual Disability, Congenital Malformations, and Deafness

Maystadt Isabelle , Andrew Shayne F , De Schepper Jean , Wauters Nathalie , Mortier Geert , Benoit Valerie , Joset Pascal , Oneda Beatrice , Rosenfeld Ron G , Rauch Anita , Hwa Vivian

Background: Heterozygous mutations in the IGF1 receptor (IGF1R) are often associated with congenital IGF1 resistance, causing variable degrees of intrauterine growth retardation (IUGR) and postnatal short stature. To date, only one homozygous IGF1R mutation has been reported, in a child presenting with severe growth failure, mild intellectual impairment, microcephaly, dysmorphic features, and cardiac malformations.Objective: We now repo...