Conjoined twins post single embryo transfer of a euploid embryo in a frozen embryo transfer cycle
Anastasia Salame1, Carol Coughlan2, Human Fatemi3
1Reproductive Endocrinology and Infertility Department, ART Fertility Clinics, Al Ain, UAE anastasia.salame@artfertilityclinics.com.
BMJ Case Reports
|December 17, 2025
Abstract:
A patient of advanced maternal age with infertility underwent assisted reproductive technology treatment, followed by a single euploid embryo transfer in a hormonal replacement therapy frozen cycle. The implanted embryo resulted in a thoracophagus conjoined twin pregnancy, joined at the thorax, and was diagnosed at 11 weeks. The pregnancy was terminated. This is the first case of conjoined twins resulting from a euploid embryo transfer in a frozen cycle.
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