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[XXYY chromosomal constitution recognised during the 1st year of life]
La Nouvelle Presse Medicale
|January 17, 1976
Insights
XXYY chromosomal constitution in infants can be identified through specific facial features and genital abnormalities. Immunofluorescent testing of cells offers a rapid and accurate diagnosis for early intervention and genetic counseling.
Area of Science:
- Genetics
- Pediatrics
- Medical Diagnostics
Background:
- XXYY syndrome is a rare chromosomal disorder affecting males, characterized by the presence of an extra Y chromosome.
- Clinical presentation can be variable, often including developmental and physical anomalies.
Observation:
- Two cases of infants presenting with a distinctive facial appearance and external genitalia development abnormalities were observed.
- These clinical signs prompted suspicion of an underlying chromosomal anomaly.
Findings:
- Diagnosis was confirmed via immunofluorescent study of buccal scrapings and polynuclear cells.
- This method proved to be rapid and highly effective for identifying the XXYY chromosomal constitution.
Implications:
- Early and accurate diagnosis of XXYY syndrome is crucial for affected infants.
- Facilitates timely genetic counseling and management strategies for families.
- Highlights the utility of immunofluorescence in diagnosing chromosomal abnormalities in neonates.
Abstract:
The authors report two cases of infants with an XXYY chromosomal constitution. The anomaly was suspected in the presence of a particular facies associated with abnormalities of development of the external genitalia. The diagnosis was confirmed rapidly and easily by immunofluorescent study of buccal scrapings and polynu clear cells. Early diagnosis is a value with regard to family counselling.