Abstract
Purpose: To present a case involving the transfer of a single pronucleated oocyte resulting in a monozygotic twin pregnancy.
Method: A descriptive case report of a single patient.
Results: The patient conceived and was found to have a monochorionic diamnionic pregnancy which resulted in the birth of normal identical twin boys at 32 weeks of gestation.
Conclusions: The case report addresses an issue that has not received proper attention in the literature. It illustrates that observing a single PN in an oocyte at fertilization check should not be an absolute deterrent to transferring the resulting embryo even in an older patient with a high FSH level. This report also suggests that single observations, especially at the assessment of fertilization, in the IVF laboratory are limited when evaluating embryo potential and normalcy.
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Dasig, D., Lyon, J., Behr, B. et al. Monozygotic Twin Birth After the Transfer of a Cleavage Stage Embryo Resulting from a Single Pronucleated Oocyte. J Assist Reprod Genet 21, 427–429 (2004). https://doi.org/10.1007/s10815-004-8758-2
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DOI: https://doi.org/10.1007/s10815-004-8758-2