hrp0086p1-p605 | Growth P1 | ESPE2016

A New Case of Intragenic Deletion in IGF1R with Very Mild Phenotype

Coppola Ruggero , Luongo Caterina , Nacca Raffaella , Sasso Marcella , Grandone Anna , del Giudice Emanuele Miraglia , Perrone Laura

Background: IGF1R mutations are characterized by IGF-1 resistance causing impaired fetal and postnatal growth. Several reports in children with heterozygous defects of IGF1R have demonstrated a variable phenotype, which can be associated to microcephaly, dismorphic features and mild developmental delay.Case presentation: We report of an 8-years-old boy, who came at our observation with short stature (−3.2 SDS) and mild microcephal...

hrp0084p1-91 | Growth | ESPE2015

Mutation in RTTN, a Regulator of Ciliary Function, Causes a Complex Syndrome Characterized by Severe Congenital Microcephaly, Lissencephaly and Profound Growth Failure in Two Siblings

Grandone Anna , Nigro Vincenzo , Torella Annalaura , Festa Adalgisa , Luongo Caterina , Marzuillo Pierluigi , Coppola Ruggero , del Giudice Emanuele Miraglia , Perrone Laura

Background: Primordial dwarfism (PD) is a phenotype characterized by profound growth retardation and microcephaly that is prenatal in onset. Recently mutations in genes involved in ciliogenesis have been described in patients with primordial dwarfism phenotype. In 2012 mutations in rotatin (RTTN), a protein involved in cilia structure and function, have been described in in individuals with bilateral diffuse polymicrogyria, but not growth failure.Case pr...