Dual BRCA1 and BRCA2 pathogenic variants in an adolescent with syndromic intellectual disability

Abstract Pathogenic variants in the BRCA1 and BRCA2 genes are associated with increased risk for breast and ovarian cancers. Concurrent mutations in both genes in the same individual are rare but pose specific challenges when identified, usually through multigene panel testing or infrequently from a...

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Main Authors: Arash Algouneh, Michelle Caudle, Tugce Balci, Andrea Andrade, Debbie Penava, Maha Saleh
Format: Article
Language:English
Published: Wiley 2022-08-01
Series:Clinical Case Reports
Subjects:
Online Access:https://doi.org/10.1002/ccr3.6202
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author Arash Algouneh
Michelle Caudle
Tugce Balci
Andrea Andrade
Debbie Penava
Maha Saleh
author_facet Arash Algouneh
Michelle Caudle
Tugce Balci
Andrea Andrade
Debbie Penava
Maha Saleh
author_sort Arash Algouneh
collection DOAJ
description Abstract Pathogenic variants in the BRCA1 and BRCA2 genes are associated with increased risk for breast and ovarian cancers. Concurrent mutations in both genes in the same individual are rare but pose specific challenges when identified, usually through multigene panel testing or infrequently from a genome‐wide analysis, such as whole‐exome sequencing (WES). We present a 15‐year‐old female patient with syndromic intellectual disability whose exome reanalysis identified secondary findings of pathogenic BRCA1 and BRCA2 variants, both inherited paternally. We discuss the significant challenges posed by this finding in genetic counseling and cancer risk management of an adolescent with nonverbal intellectual disability, as well as the impact on their family. This rare case highlights the potential increased diagnostic yield of whole exome sequencing reanalysis and the consequences of secondary medically actionable results in a pediatric patient.
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spelling doaj.art-0d26aef6851043cdb90ec6a90f24f13d2022-12-22T04:31:10ZengWileyClinical Case Reports2050-09042022-08-01108n/an/a10.1002/ccr3.6202Dual BRCA1 and BRCA2 pathogenic variants in an adolescent with syndromic intellectual disabilityArash Algouneh0Michelle Caudle1Tugce Balci2Andrea Andrade3Debbie Penava4Maha Saleh5Schulich School of Medicine Western University London Ontario CanadaDivision of Clinical Genetics, Department of Pediatrics London Health Sciences Centre London Ontario CanadaSchulich School of Medicine Western University London Ontario CanadaSchulich School of Medicine Western University London Ontario CanadaSchulich School of Medicine Western University London Ontario CanadaSchulich School of Medicine Western University London Ontario CanadaAbstract Pathogenic variants in the BRCA1 and BRCA2 genes are associated with increased risk for breast and ovarian cancers. Concurrent mutations in both genes in the same individual are rare but pose specific challenges when identified, usually through multigene panel testing or infrequently from a genome‐wide analysis, such as whole‐exome sequencing (WES). We present a 15‐year‐old female patient with syndromic intellectual disability whose exome reanalysis identified secondary findings of pathogenic BRCA1 and BRCA2 variants, both inherited paternally. We discuss the significant challenges posed by this finding in genetic counseling and cancer risk management of an adolescent with nonverbal intellectual disability, as well as the impact on their family. This rare case highlights the potential increased diagnostic yield of whole exome sequencing reanalysis and the consequences of secondary medically actionable results in a pediatric patient.https://doi.org/10.1002/ccr3.6202early detection of cancergynecology medical geneticsincidental findingsintellectual disabilitypediatricsprevention & Control
spellingShingle Arash Algouneh
Michelle Caudle
Tugce Balci
Andrea Andrade
Debbie Penava
Maha Saleh
Dual BRCA1 and BRCA2 pathogenic variants in an adolescent with syndromic intellectual disability
Clinical Case Reports
early detection of cancer
gynecology medical genetics
incidental findings
intellectual disability
pediatrics
prevention & Control
title Dual BRCA1 and BRCA2 pathogenic variants in an adolescent with syndromic intellectual disability
title_full Dual BRCA1 and BRCA2 pathogenic variants in an adolescent with syndromic intellectual disability
title_fullStr Dual BRCA1 and BRCA2 pathogenic variants in an adolescent with syndromic intellectual disability
title_full_unstemmed Dual BRCA1 and BRCA2 pathogenic variants in an adolescent with syndromic intellectual disability
title_short Dual BRCA1 and BRCA2 pathogenic variants in an adolescent with syndromic intellectual disability
title_sort dual brca1 and brca2 pathogenic variants in an adolescent with syndromic intellectual disability
topic early detection of cancer
gynecology medical genetics
incidental findings
intellectual disability
pediatrics
prevention & Control
url https://doi.org/10.1002/ccr3.6202
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