Genetic counseling in Angelman syndrome: The challenges of multiple causes

Abstract excerpt

The causal heterogeneity of Angelman syndrome (AS) makes providing information regarding recurrence risk both important and challenging, and may have a dramatic impact on reproductive decision-making for the nuclear and extended family. Most cases of AS result from typical large de novo deletions of 15q11-q13, and are expected to have a low (<1%) risk of recurrence. AS due to paternal uniparental disomy (UPD),...

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