Syndrome +12p. Case report and review

Area of Science:

• Human genetics
• Cytogenetics
• Pediatric genetics

Background:

• Familial translocations can lead to unbalanced chromosomal abnormalities in offspring.
• Chromosome 12p trisomy is a rare genetic disorder with a distinct phenotype.
• Understanding chromosomal aberrations is crucial for genetic counseling and diagnosis.

Observation:

• A family presented with a balanced translocation between chromosomes 12 and 15.
• A child was born with trisomy for the short arm of chromosome 12 (12p).
• The child's clinical presentation closely resembled previously documented cases of 12p trisomy.

Findings:

• The specific chromosomal abnormality identified was trisomy for the 12p segment (12.1 to pter).
• The observed clinical features in the affected child are consistent with the established phenotype of 12p trisomy syndrome.
• This case reinforces the association between 12p duplication and specific developmental and physical characteristics.

Implications:

• This report contributes to the understanding of familial 12/15 translocations and their consequences.
• Accurate diagnosis of 12p trisomy syndrome is essential for appropriate clinical management and genetic counseling.
• Further research into the specific genes on chromosome 12p may elucidate the underlying mechanisms of the syndrome's phenotype.