PMC4152190_01
Ultrasound image (axial plane) of the fetal head at 32 weeks of gestation shows a cystic mass measuring 2.16x1.05cm at posterior fossa.
Int-J-Fertil-Steril-5-259-g01.jpg
PMC4152190_01_Int-J-Fertil-Steril-5-259-g01.jpg
F1
Ultrasound examination was repeated in our hospital and revealed a cystic mass measuring 2.16 x 1.05 cm in the posterior midline portion of the fetal brain (Fig 1).
MRI images of the fetal head at 32 weeks's gestation shows a triangle dural sinus thrombosis measuring 2.5x2.4cm at torcular. A. T2 weighted image at axial plane with high signal intensity, B. T2 weighted image at sagittal plane shows dilation of the superior longitudinal sinus.
Int-J-Fertil-Steril-5-259-g02.jpg
PMC4152190_01_Int-J-Fertil-Steril-5-259-g02.jpg
F2
MRI at 32 weeks gestation showed a isolated triangle occipital mass measuring 2.5 x 2.4cm along the posterior surface of the brain with high signal intensity on T2 weighted MRI with occipital lobe compressed forward and superior longitudinal sinuses dilated (Fig 2).
MRI images of the fetal head at 39 weeks's gestation shows the torcular thrombosis becomes smaller than before. A. T2 weighted images at axial plane, B. T1 weighted image at axial plane.
Int-J-Fertil-Steril-5-259-g03.jpg
PMC4152190_01_Int-J-Fertil-Steril-5-259-g03.jpg
F3
At 39 weeks of gestation, fetal MRI was repeated which showed the thrombosis had shrunk significantly without causing any brain compression (Fig 3).
MRI images of neonate head three days after cesarean delivery shows further shrinkage of the torcular thrombosis (T2 weighted images at axial plane).
Int-J-Fertil-Steril-5-259-g04.jpg
PMC4152190_01_Int-J-Fertil-Steril-5-259-g04.jpg
F4
Three days after birth, MRI and MRV was performed which showed a further shrinkage of the thrombus (Fig 4) and the cerebral venous drainage was not compromised.