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Updated: Aug 11, 2026

Guide Wire Assisted Catheterization and Colored Dye Injection for Vascular Mapping of Monochorionic Twin Placentas
Published on: September 5, 2011
First-trimester diagnosis of conjoined twins
C Hubinont1, P Kollmann, V Malvaux
1Department of Obstetrics, Saint-Luc University Hospital, Catholic University of Louvain, Brussels, Belgium.
Abstract:
Two cases of conjoined twins were diagnosed during first-trimester endovaginal ultrasound and were confirmed by embryoscopy performed prior to the termination of pregnancy. An early and accurate diagnosis of this anomaly, obtained by the combined use of ultrasound and endoscopy, may enable adequate counselling and an earlier termination of pregnancy associated with minimal maternal risks.
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