title: Increased incidence and size of cavum septum pellucidum in children with chromosome 22q11.2 deletion syndrome.
abstract: Chromosome 22q11.2 deletion syndrome (22q11.2DS) is a result of a hemizygotic microdeletion that results in a variety of impairments in children including greater risk for psychiatric ailments in adulthood. We used high-resolution magnetic resonance imaging to accurately quantify the length and, for the first time, volume, of the cavum septum pellucidum (CSP) in children aged 7 to 14years with 22q11.2DS and typically developing (TD) controls. Significantly greater anteroposterior length and greater CSP volumes were found in children with 22q11.2DS compared with controls. Furthermore, the largest CSP were found only in the 22q11.2DS group and with a much higher incidence than previously reported in the literature. Given the significant midline anomalies in the brains of those affected by 22q11.2DS, large CSP may be a biomarker of atypical brain development. The implication of these larger CSP for cognitive and behavioral development is a topic in need of further investigation.
authors.affiliation: Department of Psychiatry, University of California, Davis, CA, USA; UC Davis M.I.N.D. Institute, University of California, Davis, Sacramento, CA, USA.
authors.forename: Elliott A
authors.initials: EA
authors.lastname: Beaton
authors.forename: Yufeng
authors.initials: Y
authors.lastname: Qin
authors.forename: Vy
authors.initials: V
authors.lastname: Nguyen
authors.forename: Joel
authors.initials: J
authors.lastname: Johnson
authors.forename: Joseph D
authors.initials: JD
authors.lastname: Pinter
authors.forename: Tony J
authors.initials: TJ
authors.lastname: Simon
mesh_terms: D000293:Adolescent; D000704:Analysis of Variance; D001931:Brain Mapping; D002648:Child; D002892:Chromosomes, Human, Pair 22; D004062:DiGeorge Syndrome / Q000453:epidemiology* / Q000235:genetics / Q000473:pathology*; D005260:Female; D006801:Humans; D015994:Incidence; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male; D012688:Septum Pellucidum / Q000473:pathology*