Title:Magnetic Resonance Imaging of Dural Sinus Malformation in a Fetus: A Case
Report
Volume: 20
Author(s): Fangli Li, Hui Gao, Huashan Lin and Wei Zhang*
Affiliation:
- Department of Radiology, Second People Hospital of Hunan, Changsha, Hunan Province, China
Keywords:
Congenital condition, Dural sinus malformation, Fetus, MRI, Pregnancy, Ultrasound.
Abstract:
Background:
Dural sinus malformation (DSM) is a rather rare congenital condition that can be encountered in the fetus and infants. The cause and etiology of
DSM remain unclear. Obstetric ultrasound plays a key role in screening fetal brain malformations, and MRI is frequently used as a complementary
method to confirm the diagnosis and provide more details.
Objective:
Here, we present a fetus with DSM by multiple imaging methods to help better understand the imaging characteristics of this malformation.
Case Presentation:
A 22-year-old primipara was referred to our hospital at 25 weeks of gestation following the detection of a fetal intracranial mass without any
symptoms. A prenatal ultrasound performed in our hospital at 25 + 2 gestational weeks showed a large anechoic mass with liquid dark space, while
no blood flow was detected. After the initial evaluation, this primipara received a prenatal MRI in our hospital. This examination at 25 + 5
gestational weeks delineated a fan-shaped mass in the torcular herophili, which was iso-to hyperintense on T1WI and hypointense on T2WI. At the
lower part of this lesion, a quasi-circular hyperintense on T1WI and a signal slightly hyperintense on T2WI could be seen. Meanwhile, the adjacent
brain parenchyma was compressed by the mass.
Conclusion:
We reviewed the current literature to obtain a better understanding of the mechanisms, imaging characteristics, and survival status of DSM.
Although the primipara of the present study regretfully opted for elective termination of pregnancy, the reevaluation of DSM survival deserves
more attention because of the better survival data from recent studies.
