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Observational Study
. 2018 May;38(6):395-401.
doi: 10.1002/pd.5247. Epub 2018 Apr 15.

Diagnostic Accuracy and Clinical Outcomes Associated With Prenatal Diagnosis of Fetal Absent Cavum Septi Pellucidi

Affiliations
Observational Study

Diagnostic Accuracy and Clinical Outcomes Associated With Prenatal Diagnosis of Fetal Absent Cavum Septi Pellucidi

Rachel A Pilliod et al. Prenat Diagn. .

Abstract

Background: Absence of the cavum septi pellucidi (CSP) on prenatal imaging is historically associated with additional anomalies; however, recent cases of isolated absent CSP have also been identified. This study seeks to assess the accuracy of prenatal imaging in evaluating isolated absent CSP and to describe the spectrum of clinical outcomes.

Methods: This is a retrospective observational study of all prenatally diagnosed absent CSP cases between 2011 and 2016 at our institution. Cases with additional structural parenchymal abnormalities were excluded. Clinical outcomes were abstracted from available records.

Results: We identified 15 cases of prenatally diagnosed isolated absent CSP. All patients were initially diagnosed on ultrasound (US) and 11/15 patients had fetal magnetic resonance imaging (MRI) confirming the diagnosis. Prenatal US and MRI were concordant in all cases. Of the continuing pregnancies, 2 neonatal deaths occurred related to extreme prematurity. Two cases of septo-optic dysplasia were identified in our cohort.

Discussion: In this study, fetal MRI and US had a high degree of accuracy with concordant postnatal imaging. Our study is similar to other case series suggesting that a range of clinical outcomes is possible with isolated absent CSP, but long-term patient follow up is necessary.

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  • Antenatal diagnosis of absence of septum pellucidum.
    Ben M'Barek I, Tassin M, Guët A, Simon I, Mairovitz V, Mandelbrot L, Picone O. Ben M'Barek I, et al. Clin Case Rep. 2020 Feb 5;8(3):498-503. doi: 10.1002/ccr3.2666. eCollection 2020 Mar. Clin Case Rep. 2020. PMID: 32185044 Free PMC article.

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