Fig. 1
![Fig. 1](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12883-021-02520-1/MediaObjects/12883_2021_2520_Fig1_HTML.png)
Brain MRI findings of patient No.3. The brain MRI was obtained 10 months after symptom onset, when the patient was admitted into hospital. Increased fluid-attenuated inversion recovery (FLAIR) signal could be observed in left medial frontoparietal lobe (A), right insular cortex (B), and bilateral cerebellar hemispheres (C, D). The signal abnormalities extended beyond the limbic system