PMC8720477_01
Preoperative sagittal T1-weighted gadolinium-enhanced magnetic resonance imaging showing a cyst (arrow) in the fourth ventricle with a tubular hyperintense structure.
SNI-12-616-g001.jpg
PMC8720477_01_SNI-12-616-g001.jpg
F1
The brain magnetic resonance imaging (MRI) showed a fourth ventricle cyst, 2.6 x 1.8 cm (cephalocaudal x transverse axis) with an enhancing nodule compatible with a scolex and associated obstructive hydrocephalus [Figures 1 and 2].
Preoperative axial T2-weighted fast field echo showing the hypointense four cup-shaped suckers of the scolex.
SNI-12-616-g002.jpg
PMC8720477_01_SNI-12-616-g002.jpg
F2
The brain magnetic resonance imaging (MRI) showed a fourth ventricle cyst, 2.6 x 1.8 cm (cephalocaudal x transverse axis) with an enhancing nodule compatible with a scolex and associated obstructive hydrocephalus [Figures 1 and 2].
Intraoperative morphology of the lesion.
SNI-12-616-g003.jpg
PMC8720477_01_SNI-12-616-g003.jpg
F3
The fourth ventricle was accessed through a median suboccipital craniotomy and telovelar approach [Figure 3].
Postoperative sagittal T1-weighted gadolinium-enhanced magnetic resonance imaging showing cyst removal.
SNI-12-616-g004.jpg
PMC8720477_01_SNI-12-616-g004.jpg
F4
MRI showed complete cyst removal and no complications [Figure 4].