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Case reports highlight clinical manifestations of mosaic double aneuploidy in prenatal settings, suggesting a need for better family counseling.
Given the rarity of this condition and the recognition that early post-zygotic chromosomal aneuploidy events are common, additional reports of individuals with MDA are needed to expand the natural history and improve counseling for families, especially in the prenatal period, as clinical manifestations of either chromosomal condition is possible.
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Campbell et al. (2026) studied this question.
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