Molecular Analysis of Ring Y Chromosome in a 10-Year-Old Boy with Mixed Gonadal Dysgenesis and Growth Hormone Deficiency
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Ring Y chromosome is a very rare chromosomal aberration. The published mixed gonadal dysgenesis (MGD) patients with a ring Y chromosome are short in stature, but are not growth hormone (GH) deficient. We present the molecular cytogenetic and molecular characterization of ring Y chromosome mosaicism in a 10-year-old boy with MGD whose short stature could be explained by the high percentage of cells monosomic for the X-chromosome, but also by the presence of severe GH deficiency. The ring Y chromosome in our patient is a de novo structural aberration. The fathers karyotype was normal.
Ključne reči:Growth hormone (GH) deficiency / Mixed gonadal dysgenesis (MGD) / Mosaicism / Ring Y chromosome.
Izvor:Balkan Journal of Medical Genetics, 2011, 14, 2, 71-76
ISSN: 1311-0160 (print)