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Updated: Aug 15, 2026

Semiconductor Sequencing for Preimplantation Genetic Testing for Aneuploidy
Published on: August 25, 2019
Ascertainment of 68,XX double aneuploidy by midtrimester biochemical screening: a case report
E L Ross1, J A Bofill, R E Shenefelt
1Department of Obstetrics and Gynecology, University of Mississippi Medical Center, Jackson 39216-4505, USA.
A fetus with 68,XX karyotype was ascertained by an elevated midtrimester MSHCG. By antenatal ultrasound, the only unusual finding was in relation to the placenta. Preterm delivery was mandated by the development of severe preeclampsia. Postmortem examination of the stillborn fetus demonstrated no abnormal physical findings other than bilateral syndactyly of fingers and toes.
A fetus with 68,XX karyotype was ascertained by an elevated midtrimester MSHCG. By antenatal ultrasound, the only unusual finding was in relation to the placenta. Preterm delivery was mandated by the development of severe preeclampsia. Postmortem examination of the stillborn fetus demonstrated no abnormal physical findings other than bilateral syndactyly of fingers and toes.
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