PMC7745549_01
Legend MRI of Cases I and II. Figure 1a and 1b. are axial diffusion weighted images (DWI) at the level of the caudate body and the thalamus in patient 1 showing bright diffusion signal (diffusion restriction; corresponding dark signal on ADC map not shown) centered in the left anterior caudate body (solid arrow), head of the left caudate nucleus (arrowheads) and anterior aspect of the left putamen (dashed arrow). Adjacent portions of the anterior limb of the internal capsule, the globus pallidus and external capsule are also involved. Figure 1c. and 1d are axial diffusion weighted images (DWI) at the level of the caudate body and the thalamus in patient 2 showing bright diffusion signal (diffusion restriction; corresponding dark signal on ADC map not shown) centered in the right posterior caudate body (solid arrow) and posterior aspect of the putamen (dashed arrow).
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PMC7745549_01_10.1177_2329048X20979248-fig1.jpg
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Computed tomography angiogram was negative for dissection; repeat MRI (Figure 1) with MR angiography (MRA) and MR venography (MRV) demonstrated restricted diffusion within the left caudate, anterior lentiform nucleus, anterior limb of the internal capsule, and deep white matter of the frontal lobe consistent with acute infarct, but no evidence of dissection or venous thrombosis.
PMC7745549_02