Incidental radiologic findings in the 22q11.2 deletion syndrome

J E Schmitt; J J Yi; D R Roalf; L A Loevner; K Ruparel; D Whinna; M C Souders; D M McDonald-McGinn; E Yodh; S Vandekar; E H Zackai; R C Gur; B S Emanuel; R E Gur

doi:10.3174/ajnr.A4003

Incidental radiologic findings in the 22q11.2 deletion syndrome

AJNR Am J Neuroradiol. 2014 Nov-Dec;35(11):2186-91. doi: 10.3174/ajnr.A4003. Epub 2014 Jun 19.

Authors

J E Schmitt¹, J J Yi², D R Roalf³, L A Loevner⁴, K Ruparel³, D Whinna³, M C Souders⁵, D M McDonald-McGinn⁶, E Yodh³, S Vandekar³, E H Zackai⁶, R C Gur³, B S Emanuel⁶, R E Gur⁷

Affiliations

¹ From the Department of Radiology (J.E.S., L.A.L.), Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania Brain Behavior Laboratory (J.E.S., J.J.Y., D.R.R., K.R., D.W., E.Y., S.V., R.C.G., R.E.G.), Department of Psychiatry, University of Pennsylvania, Philadelphia, Pennsylvania.
² Brain Behavior Laboratory (J.E.S., J.J.Y., D.R.R., K.R., D.W., E.Y., S.V., R.C.G., R.E.G.), Department of Psychiatry, University of Pennsylvania, Philadelphia, Pennsylvania Department of Psychiatry (J.J.Y.).
³ Brain Behavior Laboratory (J.E.S., J.J.Y., D.R.R., K.R., D.W., E.Y., S.V., R.C.G., R.E.G.), Department of Psychiatry, University of Pennsylvania, Philadelphia, Pennsylvania.
⁴ From the Department of Radiology (J.E.S., L.A.L.), Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania.
⁵ Division of Human Genetics (M.C.S., D.M.M.-M., E.H.Z., B.S.E.), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.
⁶ Division of Human Genetics (M.C.S., D.M.M.-M., E.H.Z., B.S.E.), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania Department of Pediatrics (D.M.M.-M., E.H.Z., B.S.E.), University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania Department of Pediatrics (D.M.M.-M., E.H.Z., B.S.E.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.
⁷ Brain Behavior Laboratory (J.E.S., J.J.Y., D.R.R., K.R., D.W., E.Y., S.V., R.C.G., R.E.G.), Department of Psychiatry, University of Pennsylvania, Philadelphia, Pennsylvania raquel@mail.med.upenn.edu.

Abstract

Background and purpose: The 22q11.2 deletion syndrome is a common genetic microdeletion syndrome that results in cognitive delays and an increased risk of several psychiatric disorders, particularly schizophrenia. The current study investigates the prevalence of incidental neuroradiologic findings within this population and their relationships with psychiatric conditions.

Materials and methods: Brain MR imaging from 58 individuals with 22q11.2 deletion syndrome was reviewed by board-certified radiologists by using standard clinical procedures. Intracranial incidental findings were classified into 8 categories and compared with a large typically developing cohort.

Results: The rate of incidental findings was significantly higher (P < .0001) in 22q11.2 deletion syndrome compared with typically developing individuals, driven by a high prevalence of cavum septum pellucidum (19.0%) and white matter abnormalities (10.3%). Both of these findings were associated with psychosis in 22q11.2 deletion syndrome.

Conclusions: Cavum septum pellucidum and white matter hyperintensities are significantly more prevalent in patients with the 22q11.2 deletion syndrome and may represent biomarkers for psychosis.

Publication types

Research Support, N.I.H., Extramural

MeSH terms

Adolescent
Adult
Brain / abnormalities*
DiGeorge Syndrome / pathology*
DiGeorge Syndrome / psychology*
Female
Humans
Incidental Findings
Male
Prevalence
Psychotic Disorders / genetics*
White Matter / abnormalities*

Abstract

Publication types

MeSH terms

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