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Updated: May 19, 2026

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FISH for Pre-implantation Genetic Diagnosis
Published on: February 23, 2011
Bowen-Conradi: a common Hutterite condition that mimics trisomy 18
Jason D Flanagan1, Quinn P Stein, Amelia R Mroch
1Sanford Health, Sioux Falls, SD, USA.
Summary
Bowen-Conradi syndrome (BCS) is a rare genetic disorder with symptoms similar to trisomy 18. It is notably common among Hutterites, with a 1 in 10 carrier frequency, highlighting its significance in genetic disease studies.
Area of Science:
- Medical Genetics
- Human Population Genetics
Background:
- Bowen-Conradi syndrome (BCS) is a lethal autosomal recessive disorder.
- BCS shares clinical features with trisomy 18, complicating initial diagnoses.
- The Hutterite population exhibits a high carrier frequency for BCS (1 in 10).
Observation:
- Two infant patients initially suspected of having trisomy 18 presented with normal chromosomal studies.
- This observation underscores the diagnostic challenge posed by BCS.
Findings:
- BCS is one of the most prevalent inherited genetic diseases in the studied Hutterite population.
- The high carrier frequency in Hutterites makes BCS a significant focus for population genetics.
Implications:
- Accurate diagnosis of BCS is crucial, especially in populations with high carrier rates.
- Genetic counseling is vital for couples of Hutterite descent to understand BCS risks.
- Understanding BCS in specific populations aids in broader genetic disease research.
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