ABSTRACT
Dyggve-Melchior-Clausen (DMC) syndrome is a rare autosomal recessive disorder. It is a spondyloepimetaphyseal dysplasia associated with mental retardation. Clinical manifestations include coarse facies, microcephaly, short trunk dwarfism, and mental retardation. Mutations in Dymeclin gene (DYM), mapped to chromosome 18q21.1, is responsible for DMC. We report here the observation of a consanguineous Moroccan patient having DMC syndrome. The molecular studies showed a previously reported homozygous mutation at c.1878delA of DYM gene. We discuss this recurrent mutation in Moroccan patients with DMC syndrome with a review.
Subject(s)
Child , Consanguinity , /diagnosis , Dwarfism/genetics , Dwarfism/diagnostic imaging , Genetic Diseases, X-Linked/diagnosis , Genetic Diseases, X-Linked/genetics , Genetic Diseases, X-Linked/diagnostic imaging , Humans , Intellectual Disability/diagnosis , Intellectual Disability/genetics , Intellectual Disability/diagnostic imaging , Male , Mutation/genetics , Morocco , Osteochondrodysplasias/congenital , Osteochondrodysplasias/diagnosis , Osteochondrodysplasias/genetics , Osteochondrodysplasias/diagnostic imaging , ParentsABSTRACT
Mowat-Wilson syndrome is a mental retardation-multiple congenital anomaly syndrome characterized by a typical facies, developmental delay, epilepsy, and variable congenital malformations, including Hirschsprung disease, urogenital anomalies, congenital heart disease, and agenesis of the corpus callosum. This disorder is sporadic and is caused by heterozygous mutations or deletions of the ZFHX1B gene located in the 2q22 region. We report here the first Moroccan patient, born to consanguineous parents, with Mowat-Wilson syndrome, due to a de novo, unreported mutation of the ZFHX1B gene.