Patient With Delayed Development Resulting From De Novo Duplication of 7q36.1-q36.3 and Deletion of 9p24.3.
10.5535/arm.2017.41.5.881
- Author:
Asayeon CHOI
1
;
Ja Young OH
;
Myungshin KIM
;
Woori JANG
;
Dae Hyun JANG
Author Information
1. Department of Rehabilitation Medicine, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, Korea. dhjangmd@naver.com
- Publication Type:Case Report
- Keywords:
Developmental disabilities;
Chromosome disorders
- MeSH:
Child;
Chromosome Disorders;
Chromosomes, Human, Pair 7;
Chromosomes, Human, Pair 9;
Comparative Genomic Hybridization;
Developmental Disabilities;
Genotype;
Humans;
Male;
Microcephaly;
Nose;
Phenotype
- From:Annals of Rehabilitation Medicine
2017;41(5):881-886
- CountryRepublic of Korea
- Language:English
-
Abstract:
Patients with a duplication from 7q36 to the terminus or a deletion of 9p24 have been reported, whereas those harboring both mutations have not. Here, we report a patient with simultaneous de novo 7q36.1-q36.3 duplication and 9p24.3 deletion. A 6-year-old boy presented with speech developmental delay, microcephaly, and dysmorphic features, including a long face and small nose. Chromosome and array comparative genomic hybridization analyses revealed 46,XY,dup(7)(q36.1-q36.3) and del(9)(p24.3). The sizes of the duplication and deletion were 9.9 Mb and 1.9 Mb, respectively. The duplication of chromosome 7 contained 68 known genes, of which 3 are related with entries in the Developmental Disorders Genotype-to-Phenotype (DDG2P) database. The deletion of chromosome 9 contained 6 known genes, of which 2 are in the DDG2P database. We investigated the genotype and phenotype in this patient, and reviewed the relevant literatures for possible clinical presentation in these variations.
