Abstract：
PURPOSE:to report a case of monozygotic monochorial diamniotic twins with discordant karyotypes. METHODS AND RESULTS:the pregnancy was achieved following a treatment cycle with intracytoplasmic sperm injection (ICSI) and preimplantation genetic screening (PGS) for chromosomes X, Y, 13, 16, 18, 21, 22. One embryo euploid for studied chromosomes was transferred. Prenatal ultrasonography revealed monozygotic twins. One fetus had growth retardation, multiple organ abnormalities and polyhydramnion. The other twin had normal ultrasound appearance. Delivery on week 29 of gestation resulted in the birth of two females, a stillborn twin with karyotype 45,XX,-13[12]/46,XX,r(13)[3] and a healthy twin with normal karyotype. CONCLUSIONS:the discordance in the twins' karyotypes originated from a mosaic embryo. Structural chromosomal abnormality of the affected twin could not be revealed using standard PGS investigation. Embryo splitting occurred probably due to apoptotic process in an early stage of embryo development. Apoptosis represents one of the possible mechanisms which can explain the embryo twinning process globally.
journal_name
J Assist Reprod Genetjournal_title
Journal of assisted reproduction and geneticsauthors
Tauwinklova G,Gaillyova R,Travnik P,Oracova E,Vesela K,Hromadova L,Vesely J,Musilova P,Rubes J,Kadlecova J,Slamova I,Makaturova E,Vranova Vdoi
10.1007/s10815-010-9462-zsubject
Has Abstractpub_date
2010-11-01 00:00:00pages
649-55issue
11eissn
1058-0468issn
1573-7330journal_volume
27pub_type
杂志文章abstract：: ...
journal_title：Journal of assisted reproduction and genetics
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journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章,meta分析
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journal_title：Journal of assisted reproduction and genetics
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journal_title：Journal of assisted reproduction and genetics
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journal_title：Journal of assisted reproduction and genetics
pub_type： 临床试验,杂志文章
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pub_type： 杂志文章
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journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
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pub_type： 杂志文章
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pub_type： 杂志文章
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journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章,评审
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journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章,评审
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journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
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pub_type： 杂志文章,评审
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