PMC7308480_01
MRI results of the first admission (in September). T1, T2, DWI, and Apparent diffusion coefficient (ADC) axial images in September (1st) showed symmetric lesions in the bilateral basal ganglion with hyper-intensity (yellow arrows) and symmetric hypo-intensity of ADC in the internal capsule (yellow arrowheads).
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F1
The T2-weighted image and diffusion-weighted imaging (DWI) results were normal (Figure 1).
MRI results of the second (in January) and the third admission (in Jun). (A) T1, T2, enhanced T1, DWI, and apparent diffusion coefficient (ADC) axial images in January (2nd). After the immune therapy, the follow-up T1 axial image in January revealed symmetric iso-intensity but enhanced slightly (red arrows) in the bilateral basal ganglion. Dotted hypo-intensity of ADC in the internal capsule (red arrowheads) was noticed. (B) Follow-up MRI in June (3rd) showed the iso-intensity of the bilateral basal ganglion with no enhancement and the dotted hypo-intensity lesion in the internal capsule (green arrowheads).
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F2
T1-weighted images (Figure 2A). The follow-up MRI on June 13, 2019 showed the remaining decreased signal intensity in bilateral ganglia on T1-weight sequence (Figure 2B).