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''Not to be confused with [[XXYY Syndrome]] or [[XXXYY Syndrome]].''
'''49,XXYYY syndrome''' is a [[intersex]] [[CTM]]/[[AMAB|DMAB]] variation. It's featured with facial dysmorphism, mild microcephaly, limitation of supination at the elbows, delayed bone age and moderate intellectual disability.<ref>[https://pubmed.ncbi.nlm.nih.gov/8330452/]</ref> Tissues sampled for chromosome studies of external [[Ambiguous Genitalia|ambiguous genitalia]] and abdominal gonads, consisting of a left [[Ovotesticular|ovotestis]] and a right primitive testis, contained cells 46,XX, 47,[[XYY Syndrome|XXY]] and 49,XXYYY sex chromosomes.<ref>[https://www.karger.com/Article/PDF/129719][https://pubmed.ncbi.nlm.nih.gov/13959068/][https://op.europa.eu/en/publication-detail/-/publication/b7a528a6-2d20-4384-9e52-38579a0f3677]</ref>▼
'''49,XXYYY syndrome''' is a [[intersex]] condition in which a [[CTM]] has two extra Y chromosomes and one extra X chromosome. It is a very rare condition amongst [[AMAB|DMAB]] individuals, and it has no estimated rarity.
Those with this condition tend to have facial dysmorphism, mild microcephaly, limitation of supination at the elbows, delayed bone age, and moderate intellectual disability (such as autism.)<ref>[https://pubmed.ncbi.nlm.nih.gov/8330452/]</ref> This condition is often considered a subset or a related condition to [[Klinefelter Syndrome|kilnefelter syndrome]].
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== History ==
This condition appears to have been discovered in 1967 or earlier,
== Resources ==
https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1440-1754.1967.tb01693.x
[[Category:Intersex Traits]]
[[Category:Terminology]]
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