Delineation of a recognisable phenotype of interstitial deletion 3 (q22.3q25.1) in a case with previously unreported truncus arteriosus.
Interstitial deletions of chromosome 3q22.3-25.1 are very rare with only five previous reports of deletions in this region [1,2,4,7,9]. We describe a case of a female infant with a de novo deletion. Dysmorphic features and congenital heart disease led to a clinical genetics assessment on day 1 of life. Chromosomal analysis showed an interstitial deletion with a female karyotype 46,XX,del (3)(q23q25.1)dn. Subsequent array CGH demonstrated the breakpoints as 3q22.3q25.1. This is the first documented association with a truncus arteriosus. We identify an emerging clinical phenotype of microphthalmia, microcephaly, congenital heart disease, slow feeding, skeletal abnormalities, with an abnormal facies and developmental delay. Array CGH demonstrated that the FOXL2 gene responsible for BPES was not deleted in this patient.
Rea
Gillian
G
Department of Clinical Genetics, Belfast City Hospital, Belfast, United Kingdom.
McCullough
Simon
S
McNerlan
Susan
S
Craig
Brian
B
Morrison
Patrick J
PJ
D016569:Blepharophimosis; D001763:Blepharoptosis / Q000235:genetics; D002872:Chromosome Deletion; D002893:Chromosomes, Human, Pair 3; D055028:Comparative Genomic Hybridization; D002658:Developmental Disabilities / Q000235:genetics; D005260:Female; D005838:Genotype; D006321:Heart / Q000503:physiopathology; D006330:Heart Defects, Congenital / Q000175:diagnosis / Q000235:genetics; D006801:Humans; D007223:Infant; D020411:Oligonucleotide Array Sequence Analysis; D010641:Phenotype; D014338:Truncus Arteriosus