Key result
Cytogenetic analysis of an acardiac twin pregnancy revealed a karyotype of 47,XX,+2 (trisomy 2), representing the second such reported case.
Case Report (n=1)
This case report adds to the literature on the rare occurrence of acardiac twin pregnancies associated with trisomy 2.
May prompt cytogenetic testing in acardiac twins; leaves open true incidence and clinical implications.
Acardiac anomaly is a rare complication of multiple pregnancies. Arterial-to-arterial vascular anastomoses between twins, in the presence of a fused placenta, develop in the first trimester. Consequently the pump twin provides the acardius with blood. The second case of acardiac twin pregnancy with cytogenetic analysis of the acardiac showing the karyotype 47,XX,+2 is presented. Literature of acardiac twin pregnancies with different cytogenetic results and cases with trisomy 2 are reviewed, and a hypothesis of genesis is put forward.
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W. Blaicher (2000) conducted a case report in Acardiac twin pregnancy (n=1). Cytogenetic analysis was evaluated on Karyotype. Cytogenetic analysis of an acardiac twin pregnancy revealed a karyotype of 47,XX,+2 (trisomy 2), representing the second such reported case.
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