PMC9982470_01
PMC9982470_02
(a, b, c) Axial diffusion-weighted MRI of the brain (repetition time msec/echo time msec, 8500/100; flip angle, 90 ; b-value = 1000 sec/mm2) and (d, e, f) corresponding axial apparent diffusion coefficient maps (8500/100; flip angle, 90 ; b-value = 1000 sec/mm2) at the level of the high frontal lobes (a, d), basal ganglia (b, e) and peritrigonal white matter (c, f). Areas of restricted diffusion involving the bilateral supratentorial white matter, predominantly bilateral frontal lobes (solid white arrows on all images), corpus callosum (dashed white arrows on images [b]) and [e]) and bilateral peritrigonal periventiruclar white matter (solid white arrow heads on images [b], [c], [e] and [f]).
SAJR-27-2589-g001.jpg
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F0001
T2 fluid-attenuated inversion recovery (FLAIR) signal abnormality involving the entire corpus callosum and bilateral supratentorial white matter, predominantly in the frontal regions with sparing of the thalami (Figure 1, Figure 2 and Figure 3).
Axial T2-weighted MRI of the brain (repetition time msec/echo time msec, 3680/90, 3-mm section thickness) at the level of the high frontal lobes (a), basal ganglia (b) and peritrigonal white matter (c). The images show areas of T2 signal abnormality involving the corpus callosum and the bilateral supratentorial white matter, predominantly the bilateral frontal regions (solid white arrows on all images) with sparing of the thalami.
SAJR-27-2589-g002.jpg
PMC9982470_02_SAJR-27-2589-g002.jpg
F0002
T2 fluid-attenuated inversion recovery (FLAIR) signal abnormality involving the entire corpus callosum and bilateral supratentorial white matter, predominantly in the frontal regions with sparing of the thalami (Figure 1, Figure 2 and Figure 3).
Axial fluid-attenuated inversion recovery MRI of the brain (inversion time 2500, repetition time msec/echo time msec, 9000/112, 3-mm section thickness) at the level of the high frontal lobes (a), basal ganglia (b) and peritrigonal white matter (c). Images demonstrate areas of FLAIR signal abnormality involving the corpus callosum and the bilateral supratentorial white matter, predominantly the bilateral frontal regions (solid white arrows on all images) with sparing of the thalami.
SAJR-27-2589-g003.jpg
PMC9982470_02_SAJR-27-2589-g003.jpg
F0003
T2 fluid-attenuated inversion recovery (FLAIR) signal abnormality involving the entire corpus callosum and bilateral supratentorial white matter, predominantly in the frontal regions with sparing of the thalami (Figure 1, Figure 2 and Figure 3).
Axial unenhanced T1-weighted MRI of the brain (repetition time msec/echo time msec, 300/2.52, 3-mm section thickness) at the level of centrum semiovale and corona radiata (a, b, c) with corresponding axial T2-weighted MRI of the brain (repetition time msec/echo time msec, 3680/90, 3-mm section thickness) (d, e, f). There were areas of T1 and T2 shortening following the distribution of deep medullary veins (solid white arrows on all images), more evident on the T1-weighted images.
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F0004
There were areas of T1 and T2 shortening in the distribution of the deep medullary veins (Figure 4). T1-weighted contrast-enhanced MRI indicated faint minimal leptomeningeal contrast enhancement without parenchymal contrast enhancement (Figure 5).
Axial T1-weighted MRI of the brain at the level of centrum semiovale (repetition time msec/echo time msec, 300/2.52, 3-mm section thickness), unenhanced (a) and contrast-enhanced (b) after intravenous injection of 1 mL of gadoteridol (ProHance; Bracco). There were areas of non-enhancing signal abnormality in the bilateral supratentorial frontal white matter (solid white arrow heads on images [a] and [b]), corresponding to the restricted diffusion. Subtle leptomeningeal contrast enhancement seen (solid white arrows on image b).
SAJR-27-2589-g005.jpg
PMC9982470_02_SAJR-27-2589-g005.jpg
F0005
There were areas of T1 and T2 shortening in the distribution of the deep medullary veins (Figure 4). T1-weighted contrast-enhanced MRI indicated faint minimal leptomeningeal contrast enhancement without parenchymal contrast enhancement (Figure 5).