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Journal Articles Sexual Development Year : 2020

Various Genital and Reproductive Phenotypes in 46,XX/46,XY Chimeras

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Alexander Valent
  • Function : Author
Stéphanie Belloc
  • Function : Author

Abstract

Tetragametic chimeras are due to the fusion of 2 different zygotes after fertilization. When occurring between embryos of different chromosomal sex, the phenotype ranges from fertile individuals to infertile patients and even to patients with variations in sex development. Here, we report 3 new cases of XX/XY chimeras, one in a young boy carrying an abnormal gonad which turned out to be an ovary and 2 in phenotypically normal infertile men, one of whom had been diagnosed previously as a XX-SRY negative male. These cases highlight the importance of combining several cytogenetic and molecular techniques on different tissues for a proper diagnosis and an appropriate prognosis.
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Dates and versions

inserm-03798540 , version 1 (05-10-2022)

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Agathe Hercent, Edouard Amar, Alexander Valent, Stéphanie Belloc, Xavier Ferraretto, et al.. Various Genital and Reproductive Phenotypes in 46,XX/46,XY Chimeras. Sexual Development, 2020, 13 (5-6), pp.271-277. ⟨10.1159/000510532⟩. ⟨inserm-03798540⟩
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