Case report of whole genome sequencing in the XY female: identification of a novel SRY mutation and revision of a misdiagnosis of androgen insensitivity syndrome
نویسندگان
چکیده
BACKGROUND The 46,XY female is characterised by a male karyotype and female phenotype arising due to any interruption in the sexual development pathways in utero. The cause is usually genetic and various genes are implicated. CASE PRESENTATION Herein we describe a 46,XY woman who was first diagnosed with androgen insensitivity syndrome (testicular feminisation) at 18 years; however, this was later questioned due to the presence of intact Müllerian structures. The clinical phenotype suggested several susceptibility genes including SRY, DHH, NR5A1, NR0B1, AR, AMH, and AMHR2. To study candidate genes simultaneously, we performed whole genome sequencing. This revealed a novel and likely pathogenic missense variant (p.Arg130Pro, c.389G>C) in SRY, one of the major genes implicated in complete gonadal dysgenesis, hence securing this condition over androgen insensitivity syndrome as the cause of the patient's disorder of sexual development. CONCLUSION This case highlights the emerging clinical utility of whole genome sequencing as a tool in differentiating disorders of sexual development.
منابع مشابه
A female with 46,XY Disorder of Sexual Development with normal SRY gene sequence: A case report
Background: Disorders of sex development (DSD) are a medical condition that affects the normal process of sexual Various of the genes needed for gonad development have been identified by investigation of patients with disorders sex development (DSD).Phenotypes of patients with 46,XY DSD range from atonalism in female phenotype with complete external genitalia to male phenotype with testicular...
متن کاملSyndromic Intellectual Disability Caused by a Novel Truncating Variant in AHDC1: A Case Report
Mutations in the AHDC1 gene are associated with the Xia-Gibbs syndrome (XGS), a sporadic genetic disorder characterised by developmental delay, intellectual disability, hypotonia, obstructive sleep apnoea, dysmorphic facial features, and cerebral malformations with plagiocephaly. Here we report the case of a 13-year-old Colombian female patient with a history of developmental delay, speech dela...
متن کاملIdentification of a Novel Mutation in CNNM4 Gene in an Iranian Family with Jalili Syndrome
Background and Objectives: Jalili syndrome is a rare autosomal recessive genetic disorder, which so far, only 33 families with this disorder have been reported worldwide. Patients with this disease simultaneously develop cone-rod retinal dystrophy (CRD) and amelogenesis imperfecta (AI). In this study, a mutation causing Jalili syndrome, was investigated in an Iranian family. Case Report: The...
متن کاملTwo cases of androgen insensitivity due to somatic mosaicism
Androgen insensitivity syndrome (AIS) is caused by mutations in the gene encoding the androgen receptor (AR). The incidence of AIS is estimated to be 1 in 99,000. Complete androgen insensitivity syndrome (CAIS) is characterized by a 46,XY karyotype with external genitalia that appear typically female and results from mutations that render the androgen receptor non-functional. Partial androgen i...
متن کامل