Hydrocephalus and moderate mental retardation in a boy with Van der Woude phenotype and IRF6 gene mutation.
In this report, we present a boy with lower lip pits, distinct craniofacial dysmorphism with cleft lip and palate, central nervous system malformation, and severe mental retardation. Similar but less pronounced facial findings were present in his mentally normal mother and maternal grandfather, both presenting with lower lip pits. Cleft lip was present in patient's father. Analysis of the VWS1 and VWS2 regions were performed to elucidate the molecular basis of the phenotype of the propositus. Screening for mutations at the IRF6 gene detected a pathogenic mutation (c.960G>C) in the propositus and in his mother; and a single nucleotide polymorphism (c.175-5C>G) in the propositus and in his father. Clinical and genetic aspects of this case are discussed.
Zechi-Ceide
Roseli Maria
RM
Clinical Genetics, Hospital de Reabilitação de Anomalias Craniofaciais Department of Biological Sciences, Universidade Estadual Paulista, Bauru Human Genome Center and Department of Genetics and Evolutionary Biology, Institute of Biosciences, USP, São Paulo, SP, Brazil.
Guion-Almeida
Maria Leine
ML
de Oliveira Rodini
Elaine Sbroggio
ES
Jesus Oliveira
Nélio Alessandro
NA
Passos-Bueno
Maria Rita
MR
D000293:Adolescent; D006801:Humans; D006849:Hydrocephalus / Q000150:complications*; D008607:Intellectual Disability / Q000150:complications*; D050835:Interferon Regulatory Factors / Q000235:genetics*; D008297:Male; D009154:Mutation / Q000235:genetics*; D010641:Phenotype
C109803:IRF6 protein, human; D050835:Interferon Regulatory Factors