PMID- 26833960 OWN - NLM STAT- MEDLINE DCOM- 20170104 LR - 20200930 IS - 1552-4833 (Electronic) IS - 1552-4825 (Linking) VI - 170A IP - 5 DP - 2016 May TI - Expanding the phenotypic profile of Kleefstra syndrome: A female with low-average intelligence and childhood apraxia of speech. PG - 1312-6 LID - 10.1002/ajmg.a.37575 [doi] AB - Kleefstra syndrome (KS) is a rare neurogenetic disorder most commonly caused by deletion in the 9q34.3 chromosomal region and is associated with intellectual disabilities, severe speech delay, and motor planning deficits. To our knowledge, this is the first patient (PQ, a 6-year-old female) with a 9q34.3 deletion who has near normal intelligence, and developmental dyspraxia with childhood apraxia of speech (CAS). At 6, the Wechsler Preschool and Primary Intelligence testing (WPPSI-III) revealed a Verbal IQ of 81 and Performance IQ of 79. The Beery Buktenica Test of Visual Motor Integration, 5th Edition (VMI) indicated severe visual motor deficits: VMI = 51; Visual Perception = 48; Motor Coordination < 45. On the Receptive One Word Picture Vocabulary Test-R (ROWPVT-R), she had standard scores of 96 and 99 in contrast to an Expressive One Word Picture Vocabulary-R (EOWPVT-R) standard scores of 73 and 82, revealing a discrepancy in vocabulary domains on both evaluations. Preschool Language Scale-4 (PLS-4) on PQ's first evaluation reveals a significant difference between auditory comprehension and expressive communication with standard scores of 78 and 57, respectively, further supporting the presence of CAS. This patient's near normal intelligence expands the phenotypic profile as well as the prognosis associated with KS. The identification of CAS in this patient provides a novel explanation for the previously reported speech delay and expressive language disorder. Further research is warranted on the impact of CAS on intelligence and behavioral outcome in KS. Therapeutic and prognostic implications are discussed. CI - (c) 2016 Wiley Periodicals, Inc. FAU - Samango-Sprouse, Carole AU - Samango-Sprouse C AD - Neurodevelopmental Diagnostic Center for Young Children, Crofton, Maryland. AD - The Focus Foundation, Davidsonville, Maryland. AD - Department of Pediatrics, George Washington University, Washington, District of Columbia. AD - Department of Human and Molecular Genetics, Florida International University, Miami, Florida. FAU - Lawson, Patrick AU - Lawson P AD - The Focus Foundation, Davidsonville, Maryland. FAU - Sprouse, Courtney AU - Sprouse C AD - Department of Neurology, Children's National Medical Center, Washington, District of Columbia. FAU - Stapleton, Emily AU - Stapleton E AD - The Focus Foundation, Davidsonville, Maryland. FAU - Sadeghin, Teresa AU - Sadeghin T AD - Neurodevelopmental Diagnostic Center for Young Children, Crofton, Maryland. AD - The Focus Foundation, Davidsonville, Maryland. FAU - Gropman, Andrea AU - Gropman A AD - Department of Neurology, Children's National Medical Center, Washington, District of Columbia. AD - George Washington University of the Health Sciences, Washington, District of Columbia. LA - eng PT - Case Reports PT - Journal Article DEP - 20160201 PL - United States TA - Am J Med Genet A JT - American journal of medical genetics. Part A JID - 101235741 RN - Kleefstra Syndrome SB - IM MH - Apraxias/*genetics/physiopathology MH - Child MH - Chromosome Deletion MH - Chromosomes, Human, Pair 9/genetics MH - Craniofacial Abnormalities/*genetics/physiopathology MH - Female MH - Gene Deletion MH - Heart Defects, Congenital/*genetics/physiopathology MH - Humans MH - Intellectual Disability/*genetics/physiopathology MH - Intelligence Tests MH - Language Development Disorders/genetics/physiopathology MH - Motor Skills Disorders/*genetics/physiopathology OTO - NOTNLM OT - 9q34 deletion syndrome OT - Kleefstra syndrome OT - childhood apraxia of speech OT - developmental dyspraxia OT - rare disease EDAT- 2016/02/03 06:00 MHDA- 2017/01/05 06:00 CRDT- 2016/02/03 06:00 PHST- 2014/11/25 00:00 [received] PHST- 2016/01/08 00:00 [accepted] PHST- 2016/02/03 06:00 [entrez] PHST- 2016/02/03 06:00 [pubmed] PHST- 2017/01/05 06:00 [medline] AID - 10.1002/ajmg.a.37575 [doi] PST - ppublish SO - Am J Med Genet A. 2016 May;170A(5):1312-6. doi: 10.1002/ajmg.a.37575. Epub 2016 Feb 1.