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- Title
Prenatal MR imaging of dural sinus malformation: a case report.
- Authors
Rossi, Andrea; De Biasio, Pierangela; Scarso, Eloisa; Gandolfo, Carlo; Pavanello, Marco; Morana, Giovanni; Venturini, Pier Luigi; Tortori-Donati, Paolo
- Abstract
<bold>Objective: </bold>To describe prenatal magnetic resonance imaging (MRI) findings of dural sinus malformation (DSM), a very rare, congenital form of dural arteriovenous shunt (DAVS), typically affecting newborns. <bold>Methods: </bold>Ultrasound (US) and MRI were performed at 34 weeks' gestation, and the findings of these examinations were compared with postnatal MRI studies performed at 2 days and 1 month. <bold>Results: </bold>US showed an anechoic, midline posterior fossa collection with irregular internal echodensities. Color Doppler showed prominent arterial vascularity at the lesion margins. The prenatal MRI showed a large, profoundly hypointense, midline retrocerebellar mass. Postnatal MRI, complemented with magnetic resonance (MR) angiography, showed the lesion to be a giant dural venous pouch fed by multiple mural arteriovenous shunts. Follow-up MRI at 1 month suggested latent venous hypertension and prompted endovascular treatment. <bold>Conclusion: </bold>Prenatal MR imaging is useful to establish the diagnosis, to assess complications such as hydrocephalus and tonsillar prolapse, and to help plan perinatal management, postnatal follow-up, and treatment decision-making.
- Publication
Prenatal Diagnosis, 2006, Vol 26, Issue 1, p11
- ISSN
0197-3851
- Publication type
journal article
- DOI
10.1002/pd.1347