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Trisomy 13 in a 4-year-old child
Human Genetics
|January 1, 1980
Summary
A four-year-old child with intellectual disability was diagnosed with trisomy 13 (an extra chromosome 13). This genetic condition, characterized by specific dermatoglyphics, presents with multiple developmental abnormalities.
Area of Science:
- Genetics
- Developmental Biology
- Clinical Medicine
Background:
- Trisomy 13, also known as Patau syndrome, is a rare genetic disorder caused by the presence of an extra copy of chromosome 13.
- It is associated with severe intellectual disability and multiple congenital anomalies, often leading to significant health challenges.
Observation:
- A case study of a four-year-old child presenting with intellectual disability and numerous physical abnormalities was investigated.
- The child exhibited dermatoglyphic patterns typically associated with trisomy 13.
Findings:
- Karyotype analysis revealed the presence of an extra chromosome 13, confirming a diagnosis of trisomy 13 (47,XY,13+).
- Banding analysis provided detailed confirmation of the complete extra chromosome 13.
Implications:
- This case highlights the importance of genetic analysis, including karyotyping and banding, in diagnosing developmental disorders.
- Understanding the genetic basis of trisomy 13 is crucial for genetic counseling, prognosis, and potential management strategies for affected individuals and families.