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Congress: ECR25
Poster Number: C-25467
Type: Poster: EPOS Radiologist (educational)
DOI: 10.26044/ecr2025/C-25467
Authorblock: M. Krouma, A. Gasmi, M. Mnasri, A. Chouchene, M. Kouira, M. Barka, H. El Mhabrech; Sousse/TN
Disclosures:
Marwen Krouma: Nothing to disclose
Ayoub Gasmi: Nothing to disclose
Mohamed Mnasri: Nothing to disclose
Aziz Chouchene: Nothing to disclose
Mouna Kouira: Nothing to disclose
Mariem Barka: Nothing to disclose
Houda El Mhabrech: Nothing to disclose
Keywords: CNS, Foetal imaging, MR, Ultrasound, Education, Congenital
Learning objectives To assess the role of fetal ultrasound and MRI in recognizing and differentiating various types of posterior fossa abnormalities.
Read more Background Posterior fossa abnormalities can lead to significant neurological deficits and developmental issues. Early detection through advanced imaging techniques is crucial for management and counseling of such pregnancies (1).
Read more Findings and procedure details In this work; based on our experience of the prenatal detection of fetal posterior fossa abnormalities by prenatal US and fetal MRI, we established a diagnostic approach based on our own iconography including:I. Cystic lesions of the foetal posterior fossa:A- Dandy-Walker malformation:Dandy -Walker malformation (DWM) is the most common posterior fossa malformation(2). It is characterized by the triad of: • Vermian agenesis. We can see complete or partial hypoplasia of the vermis withcephalad rotation of the vermis remnant.In these cases,...
Read more Conclusion Early diagnosis of posterior fossa abnormalities can facilitate appropriate management and improve outcomes for affected infants. 
Read more References 1. L. Guibaud. Practical approach to prenatal posterior fossa abnormalities using MRI.Pediatr Radiol (2004) 34: 700–11.2. M. Massoud, L. Guibaud.Prenatal imaging of posterior fossa disorders. A review.Paediatric Neurology (2018),1-17.3. H. Vardhan Mahalingam, R. Rangasami, S. Seshadri, I. Suresh.Imaging spectrum of posterior fossa anomalies on foetal magnetic resonance imaging with an algorithmic approach to diagnosis.Pol J Radiol 2021; 86: e183-e194.4. C. Adamsbaum,M L. Moutard, C. Andre, V. Merzoug, S. Ferey, M P. Quere, F.Lewin, C. Fallet-Bianco.MRI of the fetal posterior fossa.Pediatr...
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