ESPE Abstracts

Introduction: Heterozygous mutations in IHH are known to cause Brachydactyly type A1 (BDA1), in which the typical clinical features are bilaterally short-ening or absence of the middle phalanges of most digits of hands and feet, shortness of 1st proximal bone and short stature; althougt short stature is considered part of BDA1, in most reported cases is not always present or unrelevant compared to the stature of unaffected relatives. Recently heterozygous mutations ...

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...

Background: Silver Russell Syndrome (SRS) is characterized by pre- and postnatal growth failure, relative macrocephaly at birth, prominent forehead, feeding difficulties and body asymmetry. The diagnosis is clinical, the genetic mechanisms involved are different, in 50% of cases loss of methylation (LOM) at the paternal H19/IGF2:IG-DMR (chr11p15.5), in 10% of cases maternal uniparental disomy of chromosome 7 (UPD(7)mat), cases of maternal uniparental ...