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Related Experiment Videos

Pseudomosaicism for trisomy 13. Three case reports.

J Malin1, N Singer, D Warburton

  • 1Department of Obstetrics and Gynecology, Columbia University, New York, New York 10032.

Prenatal Diagnosis
|July 1, 1987
PubMed
Summary
This summary is machine-generated.

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Pseudomosaicism in prenatal diagnosis, especially for trisomy 13, presents genetic counseling challenges. This study found normal pregnancy outcomes in three cases of pseudomosaicism for trisomy 13, offering valuable insights.

Area of Science:

  • Prenatal Diagnosis
  • Cytogenetics
  • Medical Genetics

Background:

  • Pseudomosaicism in prenatal diagnosis poses challenges, particularly for cytogenetic abnormalities like trisomy 13 compatible with postnatal life.
  • Limited data on pregnancy outcomes involving pseudomosaicism for trisomy 13 complicates genetic counseling.
  • Trisomies 13, 18, and 21 are key concerns when pseudomosaicism is detected prenatally.

Purpose of the Study:

  • To address the difficulties in genetic counseling for pseudomosaicism during prenatal diagnosis.
  • To present cases of prenatal diagnosis of pseudomosaicism for trisomy 13.
  • To evaluate the outcomes of pregnancies with pseudomosaicism for trisomy 13.

Main Methods:

  • Case study presentation of three pregnancies with prenatal diagnosis of pseudomosaicism for trisomy 13.

Related Experiment Videos

  • Review of genetic counseling considerations for pseudomosaicism.
  • Discussion of additional prenatal diagnostic options for fetal assessment.

    • Main Results:

    • All three presented cases of prenatal pseudomosaicism for trisomy 13 resulted in normal pregnancy outcomes.
    • The study highlights the importance of accurate genetic counseling in managing pseudomosaicism cases.
    • Normal outcomes suggest that pseudomosaicism for trisomy 13 may not always lead to adverse fetal effects.

    Conclusions:

    • Pseudomosaicism for trisomy 13 in prenatal diagnosis can have normal outcomes, contrary to initial concerns.
    • Further research and data are needed to fully understand the implications of pseudomosaicism for various cytogenetic abnormalities.
    • Improved genetic counseling strategies can be developed based on the outcomes of such pregnancies.