14q12 Microdeletion syndrome and congenital variant of Rett syndrome.
until further notice
SourceEuropean Journal of Medical Genetics, 52, 2-3, (2009), pp. 148-152
Article / Letter to editor
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European Journal of Medical Genetics
SubjectIGMD 3: Genomic disorders and inherited multi-system disorders
Only two patients with 14q12 deletion have been reported to date. Here, we describe an additional patient with a similar deletion in order to improve the clinical delineation of this new microdeletion syndrome. The emerging phenotype is characterized by a Rett-like clinical course with an almost normal development during the first months of life followed by a period of regression. A peculiar facial phenotype is also present and it is characterized by mild dysmorphisms such as downslanting palpebral fissures, bilateral epicanthic folds, depressed nasal bridge, bulbous nasal tip, tented upper lip, everted lower lip and large ears. The relationship between this microdeletion syndrome and the congenital variant of Rett syndrome due to point mutations in one of the genes included in the deleted region, FOXG1, is discussed.
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