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Predictive testing and oncogenes.

Frederick P Li

    Ethics & Behavior
    |January 1, 1995
    PubMed
    Summary
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    Genetic testing for Li-Fraumeni Syndrome revealed an incidental finding: a 10-year-old was not biologically related to the father. This raises ethical questions about disclosing non-paternity in genetic screening.

    Area of Science:

    • Medical Genetics
    • Bioethics
    • Oncology

    Background:

    • The Questor family exhibits a high incidence of malignancies, prompting investigation for Li-Fraumeni Syndrome.
    • Predictive genetic testing was offered to assess familial cancer risk associated with the p53 oncogene.

    Observation:

    • Genetic screening was performed on Roger, Liz, and their three children.
    • While no family members carried the Li-Fraumeni Syndrome-associated oncogene, an incidental finding of non-paternity was identified.
    • The 10-year-old child was found not to be the biological offspring of Roger Questor.

    Findings:

    • The geneticist identified that the 10-year-old child is not biologically related to Roger Questor.
    • The other two children (ages 12 and 7) are biologically related to both Roger and Liz Questor.
    Keywords:
    Dana-Farber Cancer Institute (Boston)Genetics and ReproductionProfessional Patient Relationship

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    Implications:

    • This case presents a complex ethical dilemma regarding the disclosure of incidental findings in genetic testing.
    • It necessitates consideration of the geneticist's duty to inform versus the potential psychological and familial impact of revealing non-paternity.
    • Recommendations are required for managing such unanticipated non-paternity findings in a clinical genetic setting.