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Fetal magnetic resonance imaging findings of Dandy-Walker malformation in monochorionic diamniotic twins

Article type: Other

Authors: Anık, Yonca; | Yücesoy, Gülseren | Anık-İlhan, Gökçe

Affiliations: Department of Radiology, Kocaeli University School of Medicine, Kocaeli, Turkey | Department of Obstetrics and Gynecology, Kocaeli University School of Medicine, Kocaeli, Turkey | Department of Obstetrics and Gynecology, Dr. Lütfi Kırdar Kartal Education and Research Hospital, İstanbul, Turkey

Note: [] Corresponding author: Assoc Prof. Yonca Anık, Department of Radiology, Kocaeli University Faculty of Medicine, 41380 Umuttepe, Kocaeli, Turkey. Tel.: +90 262 3037236; Fax: +90 262 3038003/ +90 262 3037003; E-mail: yoncaanik@yahoo.com.

Keywords: Fetal magnetic resonance imaging, Dandy-Walker malformation, monochorionic diamniotic twins

DOI: 10.3233/PNR-14093

Journal: Journal of Pediatric Neuroradiology, vol. 3, no. 2, pp. 91-94, 2014

Received 2 July 2013
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Revision received 9 July 2013
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Accepted 10 July 2013
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Published: 2014
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Abstract

Fetal magnetic resonance imaging (MRI) findings of Dandy-Walker malformation are presented in twins at 22 weeks of gestation. The mother was 22 years-old. Prenatal ultrasonography at 18 weeks revealed mega cisterna magna in one fetus and a borderline cisterna magna in the other fetus of monochorionic diamniotic twins. Fetal MRI findings were consistent with Dandy-Walker Syndrome in one and Dandy-Walker variant in the other fetus. Dandy-Walker malformation affecting both fetuses of the twins is extremely rare. Although ultrasonography is the primary modality for the diagnosis, fetal MRI is an important tool to confirm the diagnosis, to describe the anatomic features in detail and to identify associated anomalies.