Page 50 - ESHRE2019
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Prevalence and typology of mosaicism in POCs and pregnancies
❑ Mosaicism in POCs
❑ Mosaicism in pregnancies
Mosaicism in ongoing pregnancies
❑ 1 to 2% of ongoing pregnancies
❑ CPM (90%) or TFM (10%)
❑ TFM, essentially for:
❑ Trisomies 8, 9, 13, 18, 21, gonosomes, surpernumerary
markers
❑ CPM, theoretically:
❑ All chromosomes
❑ Rare autosomal trisomies (RATs)
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