-a thin line of CSF fluid best seen in coronal view next to the frontal right lobe and parietal right lobe, separating the mass from the brain parenchyma itself : most likely an extra axial mass.
-Intra axial brain damage as well on the adjacent cortex.
-the mass mainly showed hemorraghic signal, with characteristic black hypointense signal on T2* images. The mixed signal in T1 images, and also fluid-fluid
levels on all sequences suggested continuous hemorrhage since the blood signal
varies according to its age.
Our final diagnosis was therefore dural sinus malformation with thrombosis, of the right lateral sinus in this case, with venous infarction of the adjacent brain parenchyma.
The major mass effect, brain damage, and associated signs of cardiac failure bore a poor prognosis in this case. There was therefore very little hope for spontaneous regression without sequelae.
The parents opted for normal delivery at 38WG. The newborn passed away 2 days after delivery, and
fetopathological exam has been denied.
H. Laurichesse Delmas, N. Winer, D. Gallot, K. Lopes, F. Perrotin, S. Fluncker, F. Geissler, A. M. Beaufrere, F. Vendittelli, C. Couture, D. Lemery. Prenatal diagnosis of thrombosis of the dural sinuses:
report of six cases, review of the literature and suggested management. (2008) Ultrasound in Obstetrics and Gynecology. 32 (2): 188. https://doi.org/10.1002/uog.5348 https://www.ncbi.nlm.nih.gov/pubmed/18512853