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Errors in Germline Biomarker Testing

delete2026-03-01
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PRE
AI
S
Suzanne M. Mahon *
L
Laura McLaughlin
U
Usa Khemthong
O
Owen, Constance
DOI:10.1097/PPO.0000000000000812delete
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Abstract

Abstract

En 中文
Purpose:Germline biomarker testing to assess inherited risk for developing malignancy has evolved quickly from testing for 1 or 2 genes from a few laboratories to ordering panels of 80 or more genes available from multiple laboratories. Many health professionals did not receive foundational information in training yet are expected to identify and manage care for individuals and families with germline risk. Errors in testing do occur and can have significant adverse consequences including missed opportunities for prevention and detection for the patient and family, unnecessary risk-reducing surgery, and even death. By better understanding these errors and underlying causes, as well as the potential negative consequences due to these errors, strategies can be developed to help prevent future harm to patients.Methods:Using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) reporting system a literature review was completed to identify case reports of errors in germline testing for hereditary cancer. Ovid MEDLINE, Scopus, and EBSCOHOST CINAHL, were searched from January 2009 through February 2025. Reference lists were reviewed to identify additional case reports. Each case report was abstracted to identify error(s), consequence(s), and potential error(s) prevented.Results:A total of 106 cases were identified from the search of the databases and 1 case using archival methods. Sixty-six (61%) cases described more than one error and 61 (44%) described more than one negative consequence. In 48 (45%) cases one or more additional errors were prevented when a genetics professional was consulted. The most common errors were misinterpretation of data, failure to take a full family history and review previous test results, not recognizing a syndrome, and selecting the wrong test or wrong laboratory for testing. Negative consequences included missed opportunities for prevention and detection for the patient and potentially other family members, one or more unnecessary risk-reducing surgeries in 10 patients, late detection of malignancy in 8 patients, and 7 patient deaths.Discussion:Although germline testing seems to be a simple laboratory test, many errors occur that have avoidable adverse consequences for both the patient and family. Errors may occur because of a lack of foundational knowledge in comprehensive risk assessment and on how to order the best test in a laboratory capable of detecting a pathogenic variant as well as how to interpret germline testing results. Increasing the number of genetics professionals, implementing new delivery models, and increasing educational efforts in nongenetics professionals could prevent and decrease errors.
Keywords:
germline
malignancy
hereditary cancer
risk assessment
genetic counseling
genetic testing
errors

Journal

Cancer Journal cover
Cancer Journal
IF:
2.2
Papers:
28
Citations:
2.9K

Organization

C
Chulabhorn Royal Academy
Scholars:
579
Papers: 412
Citations: 3
S
Saint Louis University
Scholars:
1.1W
Papers: 8.7K
Citations: 151
Cited Papers

Cited Papers

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Use of BRCA Mutation Test in the US, 2004-2014
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Update to the essential genomic nursing competencies and outcome indicators
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errKathleen A. Calzone; Liz Stokes; Cheryl Peterson; Laurie Badzek
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Pitfalls and challenges in genetic test interpretation: An exploration of genetic professionals experience with interpretation of results
err2021-04-05
err0
errOAAI
errKatherine E. Donohue; Catherine Gooch; Alexander Katz; Jessica Wakelee; Anne Slavotinek; Bruce R. Korf
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Risk Assessment, Genetic Counseling, and Genetic Testing for BRCA-Related Cancer US Preventive Services Task Force Recommendation Statement
err2019-08-20
err332
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errOwens, Douglas K.; Davidson, Karina W.; Krist, Alex H.; Barry, Michael J.; Cabana, Michael; Caughey, Aaron B.; Doubeni, Chyke A.; Epling, John W.; Kubik, Martha; Landefeld, C. Seth; Mangione, Carol M.; Pbert, Lori; Silverstein, Michael; Simon, Melissa A.; Tseng, Chien-Wen; Wong, John B.
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The changing landscape of hereditary cancer genetic testing
errCANCER
IF5.1
err2017-12-19
err2
errOAAI
errWebster, Rachel D.; Ross, Jessica L.; Arun, Banu K.
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The Challenge of Genetic Variants of Uncertain Clinical Significance A Narrative Review
err2022-07-01
err42
errOAAI
errBurke, Wylie; Parens, Erik; Chung, Wendy K.; Berger, Sara M.; Appelbaum, Paul S.
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The PRISMA 2020 statement: an updated guideline for reporting systematic reviews
errBMJ
IF0
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err0
PREAI
errPage,Matthew J; McKenzie,Joanne E; Bossuyt,Patrick M; Boutron,Isabelle; Hoffmann,Tammy C; Mulrow,Cynthia D; Shamseer,Larissa; Tetzlaff,Jennifer M; Akl,Elie A; Brennan,Sue E; Chou,Roger; Glanville,Julie; Grimshaw,Jeremy M; Hróbjartsson,Asbjørn; Lalu,Manoj M; Li,Tianjing; Loder,Elizabeth W; Mayo-Wilson,Evan; McDonald,Steve; McGuinness,Luke A; Stewart,Lesley A; Thomas,James; Tricco,Andrea C; Welch,Vivian A; Whiting,Penny; Moher,David
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