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Muscular ventricular septal defect in a human embryo of 11 mm crown-rump length (six weeks)—no case of developmental arrest

Published online by Cambridge University Press:  19 August 2008

Arnold C. G. Wenink
Arnold C. G. Wenink*
Affiliation:
From the Department of Anatomy and Embryology, University of Leiden, Leiden
*
Dr. Arnold C. G. Wenink, Department of Anatomy and Embryology, PO Box 9602, 2300 RC Leiden, The Netherlands. Tel. 31-71-527-6682; Fax. 31-71-527-6680. .
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Abstract

A human embryo of 11 mm crown-rump length (six weeks, stage 15) is described, in which a muscular defect is present in the ventricular septum, in addition to the interventricular communication normal for this stage of development. The defect consists of large confluent spaces between very loose trabeculations. Its morphology is identical to that of the central muscular ventricular septal defect well recognized in the mature heart. It is suggested that the defect was caused by widening of the sinusoidal spaces which are temporarily present in the normal developing septum.

Keywords

Muscular ventricular septal defecttrabecular fusionembryo
Type
Brief Reports
Information
Cardiology in the Young , Volume 6 , Issue 2 , April 1996 , pp. 181 - 183
Copyright
Copyright © Cambridge University Press 1996

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References

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