Double balanced chromosomal translocation carrier (6;8), (13;14)--a case report

Area of Science:

• Human Genetics
• Cytogenetics
• Reproductive Biology

Background:

• Prenatal diagnosis is crucial for identifying chromosomal abnormalities.
• Advanced maternal age is a known risk factor for genetic disorders.
• Family studies are essential for understanding genetic inheritance patterns.

Observation:

• A female individual was identified with two separate balanced autosomal translocations: t(13q;14q) and t(6;8)(p11;p12).
• The identification occurred during family studies prompted by prenatal diagnosis due to advanced maternal age.
• The individual's karyotype was determined as 45,XX,-13,-14,+t(13q;14q),t(6;8)(p11;p12).

Findings:

• This is the first reported case of an individual carrying two distinct balanced autosomal translocations.
• The study explores the theoretical probability of producing phenotypically normal offspring in such cases.
• Reproductive history and family pedigree were analyzed in conjunction with the chromosomal findings.

Implications:

• This case expands the understanding of chromosomal translocation complexity in humans.
• It highlights the importance of comprehensive genetic evaluation in families with reproductive challenges.
• Further research may explore the reproductive outcomes and genetic counseling implications for carriers of multiple translocations.