Other MR imaging abnormalities associated with anti-LGI1 encephalitis
| Studies (No.) | Total Subjects (No.) | Proportion | |
|---|---|---|---|
| Amygdala T2 hyperintensity | 3 | 94 | 9 (10%) |
| Insula T2 hyperintensity | 5 | 153 | 12 (8%) |
| Cortical T2 FLAIR hyperintensitya | 4 | 79 | 14 (18%) |
| Cortical with diffusion restrictiona | 3 | 85 | 2 (2%) |
| Leptomeningeal gadolinium enhancement | 2 | 61 | 3 (5%) |
| MTL swelling | 4 | 117 | 18 (15%) |
| MTL atrophyb | 7 | 353 | 55 (16%) |
| MTL with gadolinium enhancement | 2 | 151 | 5 (3%) |
| MTL atrophy or mesial temporal sclerosis on follow-up | 6 | 154 | 71 (46%) |
| BG atrophy | 2 | 102 | 3 (3%) |
a Excluding MTL and insula.
↵b The time of the MR imaging relative to symptom initiation was not available.