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The Absence of One Umbilical Artery in Malformed MZ Twins1

Published online by Cambridge University Press:  01 August 2014

Jaroslav Slípka  and
Jitka Kočová
Jaroslav Slípka*
Affiliation:
Department of Histology and Embryology, Faculty of Medicine, Charles University in Plzeň
Jitka Kočová
Affiliation:
Department of Histology and Embryology, Faculty of Medicine, Charles University in Plzeň
*
Dept. of Histology and Embryology, Faculty of Medicine, Charles University, Karlovarská 48, Plzeň, Czechoslovakia

Summary

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The authors studied the structure of the umbilical cord in a cephalothoracopagus and a holoacardius amorphus. In both cases they met with the absence of one umbilical artery. They discuss on the possible teratogenic influence of this umbilical anomaly, which appears in the acardius as a regular phenomenon, and, along with the velamentous insertion and with the vascular anastomoses bringing about the reverse blood circulation, constitutes the main cause of malformation.

Type
Research Article
Information
Acta geneticae medicae et gemellologiae: twin research , Volume 19 , Issue 4 , October 1970 , pp. 567 - 575
Copyright
Copyright © The International Society for Twin Studies 1970

Footnotes

1

Lecture given at the 12th Congress of Morphology, Prague, on 16 October 1969.

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