Difficult early sonographic diagnosis of absence of the fetal septum pellucidum

Standard sonographic views of the brain obtained along the axial planes at mid‐gestation failed to identify absence of the septum pellucidum in two consecutive fetuses. It was presumably the close proximity of the walls of the lateral ventricles that generated an artifact resembling a normal cavum s...

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Bibliographic Details
Published in:Ultrasound in obstetrics & gynecology 2005-01, Vol.25 (1), p.70-72
Main Authors: Pilu, G., Tani, G., Carletti, A., Malaigia, S., Ghi, T., Rizzo, N.
Format: Article
Language:English
Subjects:
Adolescent
Adult
Biological and medical sciences
congenital anomalies
Early Diagnosis
Female
Fetal Diseases - diagnosis
Fetal Diseases - diagnostic imaging
fetus
Gestational Age
Gynecology. Andrology. Obstetrics
Humans
Magnetic Resonance Imaging
Medical sciences
Pregnancy
prenatal diagnosis
septo‐optic dysplasia
Septum Pellucidum - abnormalities
Septum Pellucidum - diagnostic imaging
Ultrasonography, Prenatal
ultrasound
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Summary:Standard sonographic views of the brain obtained along the axial planes at mid‐gestation failed to identify absence of the septum pellucidum in two consecutive fetuses. It was presumably the close proximity of the walls of the lateral ventricles that generated an artifact resembling a normal cavum septi pellucidi. In one of these fetuses, septo‐optic dysplasia was confirmed by magnetic resonance demonstration of hypoplastic optic tracts. In the other fetus, isolated absence of the septum pellucidum was the final diagnosis. Standard axial scans are unreliable in predicting absence of the septum pellucidum in the mid‐trimester fetus when the lateral ventricles are normal in size. Copyright © 2004 ISUOG. Published by John Wiley & Sons, Ltd.
ISSN:0960-7692
1469-0705
DOI:10.1002/uog.1786