Figure 2.

A–G: Male, 45 years old, VE patient, fever with headache and dizziness for 5 days MRI showed that DWI (b = 1000 s/mm²) of bilateral medial frontal gyrus, cingulate gyrus, hippocampus, temporal lobe, and insular lobe was abnormally high signal, T₂-FLAIR was slightly high signal (A–D), and the lesions involved the limbic system asymmetrically. After 1 month of treatment, the symptoms of the patients improved significantly. Review examination of MRI showed that (E–G): the original focus range had little change on the T₂-FLAIR sequence, but basically disappeared on the DWI sequence. DWI is more sensitive than FLAIR sequence in the follow-up after treatment.