PMC9699860_01
(a) Preoperative T1-weighted magnetic resonance imaging (MRI) image (coronal view) showing periventricular old ischemia alongside cerebospinal fuild (CSF)-filled cleft in the right-sided hemisphere. (b) Preoperative T2-weighted MRI image (axial view) revealing periventricular longstanding ischemic changes and unilateral CSF-filled cleft in the right hemisphere extending from the frontal horn of the lateral ventricle to the Sylvian fissure.
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F1
Magnetic resonance imaging [Figure 1] revealed periventricular hemorrhage along with unilateral cerebrospinal fluid -filled cleft in the right hemisphere extending from the frontal horn of the lateral ventricle to the Sylvian fissure.
(a) Preoperative digital subtraction angiography demonstrating fibromuscular dysplasia-related multifocal stenosis along the right extracranial internal carotid artery (ICA). (b) Preoperative digital subtraction angiography demonstrating the "beads-on-a-string" sign appearance along the right extracranial ICA.
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F2
Diagnostic cerebral angiography catheterization [Figure 2] of the right ICA showed significant stenotic segments of the cervical ICA, and a decision for endovascular stenting was made.