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Exclusively paternal X chromosomes in a girl with short stature
A A Schinzel1, W P Robinson, F Binkert
1Institut für Medizinische Genetik der Universität, Zürich, Switzerland.
Human Genetics
|September 1, 1993
Abstract:
A 13 1/2 year-old girl with short stature and very few Turner stigmata revealed 45,X/46,XX mosaicism with 90%-100% 46,XX cells in three sequential blood lymphocyte cultures. Molecular investigation of the parental origin of her X chromosomes revealed homozygosity for paternal X markers and an absence of maternal markers. Luteinizing hormone response to growth hormone releasing hormone was increased. Impaired gonadal function and shortness of stature in this case could be a result of the mild mosaicism with a 45,X cell line and/or is a consequence of the paternal-only origin of her X chromosomes.