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Line 1: :''~~Not to be confused with [[~~{{Distinguish\|XXYY Syndrome~~]], [[~~\|XXXYY Syndrome~~]], [[~~\|XYYYY Syndrome~~]].~~}}'' '''49, XXYYY syndrome''' is a [[intersex]] variation in which a [[CTM]] individual has two extra Y chromosomes and one extra X chromosome. It is a very rare variation amongst [[AMAB\|DMAB]] individuals, and it has no estimated rarity.