title: A Boy with an LCR3/4-Flanked 10q22.3q23.2 Microdeletion and Uncommon Phenotypic Features.
abstract: The recurrent 10q22.3q23.2 deletion with breakpoints within low copy repeats 3 and 4 is a rare genomic disorder, reported in only 13 patients to date. The phenotype is rather uncharacteristic, which makes a clinical diagnosis difficult. A phenotypic feature described in almost all patients is a delay in speech development, albeit systematic studies are still pending. In this study, we report on a boy with an LCR3/4-flanked 10q22.3q23.2 deletion exhibiting an age-appropriate language development evaluated by a standardized test at an age of 2 years and 3 months. The boy was born with a cleft palate - a feature not present in any of the patients described before. Previously reported cases are reviewed, and the role of the BMPR1A gene is discussed. The phenotype of patients with an LCR3/4-flanked 10q22.3q23.2 deletion can be rather variable, so counseling the families regarding the prognosis of an affected child should be done with caution. Long-term studies of affected children are needed to delineate the natural history of this rare disorder.
authors.affiliation: Institute for Human Genetics, University of Wuerzburg, Wuerzburg, Germany.
authors.forename: E
authors.initials: E
authors.lastname: Petrova
authors.affiliation: Institute for Human Genetics, University of Wuerzburg, Wuerzburg, Germany.
authors.forename: C
authors.initials: C
authors.lastname: Neuner
authors.affiliation: Institute for Human Genetics, University of Wuerzburg, Wuerzburg, Germany.
authors.forename: T
authors.initials: T
authors.lastname: Haaf
authors.affiliation: Institute for Human Genetics, University of Wuerzburg, Wuerzburg, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Schmid
authors.affiliation: University Children's Hospital, University of Wuerzburg, Wuerzburg, Germany.
authors.forename: J
authors.initials: J
authors.lastname: Wirbelauer
authors.affiliation: Department of Special Education, Speech and Language Pathology, University of Wuerzburg, Wuerzburg, Germany.
authors.forename: A
authors.initials: A
authors.lastname: Jurkutat
authors.affiliation: Department of Orthodontics, Center for Pre-Speech Development and Developmental Disorders, University of Wuerzburg, Wuerzburg, Germany.
authors.forename: K
authors.initials: K
authors.lastname: Wermke
authors.affiliation: Institute for Human Genetics, University of Wuerzburg, Wuerzburg, Germany.
authors.forename: I
authors.initials: I
authors.lastname: Nanda
authors.affiliation: Institute for Human Genetics, University of Wuerzburg, Wuerzburg, Germany.
authors.forename: E
authors.initials: E
authors.lastname: Kunstmann
keywords: BMPRA1; Cleft palate; LCR3/4-flanked 10q22.3q23.2 deletion; Language development