Thrombosed fetal dural sinus malformation diagnosed with magnetic resonance imaging.
BACKGROUND
Dural sinus malformations are rare congenital forms of dural arteriovenous shunt. Our goal is to describe prenatal ultrasonography and magnetic resonance imaging (MRI) findings of a thrombosed midline dural venous malformation.


METHODS
Second-trimester fetal ultrasonography and MRI demonstrated a large T2-hypointense mass centered at the level of the torcular Herophili consistent with complete thrombosis of a dural sinus malformation. A follow-up third-trimester MRI showed decreased thrombus size and no parenchymal injury. A neurologically intact newborn was delivered.


CONCLUSIONS
Dural sinus malformations can lead to fetal intracranial thrombosis. Prenatal imaging is useful to establish the diagnosis of dural sinus malformations and to plan perinatal management and treatment options.
Spampinato
M Vittoria
MV
Department of Radiology, Medical University of South Carolina, Charleston, South Carolina 29425, USA. spampin@musc.edu
Hardin
Vanessa
V
Davis
Melissa
M
Chang
Eugene
E
Rumboldt
Zoran
Z
D000328:Adult; D003392:Cranial Sinuses / Q000002:abnormalities*; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis*; D006801:Humans; D008279:Magnetic Resonance Imaging; D011247:Pregnancy; D011296:Prenatal Diagnosis; D012851:Sinus Thrombosis, Intracranial / Q000175:diagnosis*