PMC8516011_01
The perfusion area of the right middle cerebral artery is hyperintense on axial T2-weighted Imaging (WI) (A) and Fluid-Attenuated Inversion-Recovery (FLAIR) (B), also hyperintense on Diffusion-Weighted Imaging (DWI) (C) and hypointense on Apparent-Diffusion Coefficient (ADC) map (D) (arrows). The cerebral peduncles are symmetric on T2-WI (E), (arrowhead).
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F1
MRI during acute stroke (Figure 1) and three years later (Figure 2).
A: axial T1-WI, B: T2-WI. Tissue loss in the right insula and basal ganglia (arrow). The ipsilateral cerebral peduncle is atrophied by WD (arrowhead).
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F2
MRI during acute stroke (Figure 1) and three years later (Figure 2).
PMC8516011_02
A: axial soft-tissue window CT, B: T1-Gd, C: T2-WI. Left intracerebral hemorrhage in the caudate and lentiform nuclei, hyperdense on CT and hyperintense on MRI (arrows). The cerebral peduncles symmetric (arrowhead).
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F3
Compare computed tomography (CT) and MRI during the hemorrhage (Figure 3) are compared to MRI three years later (Figure 4).
A: axial T1-WI, B: T2-WI. Atrophy of the left basal ganglia shown by a hypointense zone on T1-WI (arrow), accompanied by atrophy of the left mesencephalon (arrowhead).
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F4
Compare computed tomography (CT) and MRI during the hemorrhage (Figure 3) are compared to MRI three years later (Figure 4).
PMC8516011_03
A: axial preoperative T1-Gd, B: postoperative T2-WI. Two heterogeneous contrast-enhancing left frontal tumors (arrows). Zones of tissue loss, filled with cerebrospinal fluid (arrowheads).
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F5
Figure 5 shows the lesions on preoperative and postoperative MRI's and Figure 6 displays the evolution of WD with prolonged time after surgery (Figure 6).
A, B, C and D: axial T2-WI; 0, 8, 16 and 34 months postoperative, respectively. With increasing time after brain surgery, notice the progression of WD in the ipsilateral mesencephalon (arrows).
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F6
Figure 5 shows the lesions on preoperative and postoperative MRI's and Figure 6 displays the evolution of WD with prolonged time after surgery (Figure 6).
PMC8516011_04
A and B: axial soft-tissue window CT, C: bone window CT, D and E: T2*-WI. Left frontal epidural hematoma and subgaleal hemorrhage with an underlying skull fracture (arrows). Small intraventricular bleedings in de occipital horns (cross). Diffuse petechial bleeds, one particular focal hemorrhage in the posterior limb of the right internal capsule (arrowhead).
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F7
Figure 7 shown the CT and MRI at time of trauma, and Figure 8 shows the respective size and T2-WI signal intensity of the cerebral peduncles over time (Figure 8).
A and B: axial T2-WI; 0 and 12 months after trauma, respectively. Symmetrical cerebral peduncles at start. WD in the right cerebral peduncle one year after trauma (arrowhead), this atrophy correlates with the petechial bleeding in the posterior limb of the internal capsule on Figure 7.
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F8
Figure 7 shown the CT and MRI at time of trauma, and Figure 8 shows the respective size and T2-WI signal intensity of the cerebral peduncles over time (Figure 8).
PMC8516011_05
A: axial T2-WI, B: FLAIR, C: T2-WI. Right frontoparietal large arachnoid cyst, hyperintense on T2-WI and hypointense on FLAIR (arrows). Atrophy of the right cerebral peduncle (arrowhead).
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F9
PMC8516011_06
A and B: axial T2-WI. Underdeveloped left cerebrum (arrow), with secondary widening of the left lateral ventricle (cross). Left-sided mesencephalic atrophy by WD (arrowhead).
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F10