VP50.04: The role of ultrasound screening in the identification of cystic posterior fossa anomalies at the first trimester of gestation
Year: 2021
Type: conference-abstract
Abstract: The posterior fossa anomalies are multiple and can be divided into cystic and non-cystic. The role of first trimester scan has expanded from aneuploidy screening to the diagnosis of malformations. A 24-year-old-woman, 14 weeks' pregnant, gravida 2, para 1 was referred to the department D of maternal and neonatal centre in January 2021 for antenatal ultrasound for suspected posterior fossa anomalies. The sonography showed a cystic structure in the posterior fossa and possible dysplasia of the vermis: Dandy–Walker malformation was suspected. We practiced a pregnancy termination at 14 weeks of gestation. The post abortum examination of the fetus has shown a vermian dysplasia and cystic dilatation of the fourth ventricule. The Dandy–Walker malformation was isolated and the karyotype analysis was normal. Abnormal appearance of the posterior brain at the first trimester of gestation is a marker of the posterior fossa anomalies.
DOI: 10.1002/uog.24718
Authors: J.M. Ben Ammar, F. Mraihi, H. Ben Ahmed, J. Basly, O. Mchirgui, O. Zargouni, D. Chelli
Institution: Hôpital La Rabta
Language: English
Field: Medicine
Domain: Health Sciences
Open Access status: bronze
OpenAlex ID: W3205636751