BACKGROUND: Velo-cardio-facial syndrome (VCFS) is associated with deletions in the qll band of chromosome 22, learning disability and psychosis, but the neurobiological basis is poorly understood. AIMS: To investigate brain anatomy in adults with VCFS. METHOD: Magnetic resonance imaging was used to study 10 patients with VCFS and 13 matched controls. We carried out three analyses: qualitative; traced regional brain volume; and measurement of grey and white matter volume. RESULTS: The subjects with VCFS had: a high prevalence of white matter hyperintensities and abnormalities of the septum pellucidum; a significantly smaller volume of cerebellum; and widespread differences in white matter bilaterally and regional specific differences in grey matter in the left cerebellum, insula, and frontal and right temporal lobes. CONCLUSIONS: Deletion at chromosome 22q11 is associated with brain abnormalities that are most likely neurodevelopmental and may partially explain the high prevalence of learning disability and psychiatric disorder in VCFS.
BACKGROUND:Velo-cardio-facial syndrome (VCFS) is associated with deletions in the qll band of chromosome 22, learning disability and psychosis, but the neurobiological basis is poorly understood. AIMS: To investigate brain anatomy in adults with VCFS. METHOD: Magnetic resonance imaging was used to study 10 patients with VCFS and 13 matched controls. We carried out three analyses: qualitative; traced regional brain volume; and measurement of grey and white matter volume. RESULTS: The subjects with VCFS had: a high prevalence of white matter hyperintensities and abnormalities of the septum pellucidum; a significantly smaller volume of cerebellum; and widespread differences in white matter bilaterally and regional specific differences in grey matter in the left cerebellum, insula, and frontal and right temporal lobes. CONCLUSIONS: Deletion at chromosome 22q11 is associated with brain abnormalities that are most likely neurodevelopmental and may partially explain the high prevalence of learning disability and psychiatric disorder in VCFS.
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