PMC9130866_01
Brain MRI images (T2-FLAIR sequence) for case 1: Axial (A-C):
Hyperintensities seen over bilateral temporal, frontal and parietal
lobes during initial presentation. Axial (D-F): Resolving signal
abnormalities in his repeated scan done a month later.
10.1177_11795735221102747-fig1.jpg
PMC9130866_01_10.1177_11795735221102747-fig1.jpg
fig1-11795735221102747
His brain magnetic resonance imaging (MRI) showed abnormal signals over bilateral frontal, temporal and parietal lobes involving both the cortex and white matter, and these lesions were non-enhancing (Figures 1A-1C). His repeated brain MRI a month later showed substantial reduction in the signal intensities (Figures 1D-1F).
PMC9130866_02
Brain MRI images for case 2: Axial (A) shows hyperintensity in the
right lateral dorsal pons on T2-FLAIR sequence with (B) Contrast
enhancement seen on T1 weighted sequence. Coronal (C-D) T1 weighted
pre-and post-contrast respectively. Axial (E-F) thin-sliced T1
weighted gadolinium sequence to illustrate the enhanced lesion
occurs above the entry of trigeminal nerve. (black arrow): indicates
the lesion. (white arrow): indicates the trigeminal nerve.
10.1177_11795735221102747-fig2.jpg
PMC9130866_02_10.1177_11795735221102747-fig2.jpg
fig2-11795735221102747
T2-weighted and fluid attenuated inversion recovery (FLAIR) hyper-intensities in the right lateral dorsal pons, at the level above the entry of trigeminal nerves. This lesion was contrast-enhancing without demonstrable restricted diffusion (Figure 2).