Anti-voltage-gated calcium channel cerebellitis.

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Presentation transcript:

Anti-voltage-gated calcium channel cerebellitis. Anti-voltage-gated calcium channel cerebellitis. A 23-year-old woman with a history of autoimmune hepatitis presented with altered mental status. Initial brain MR imaging (A–E) demonstrates T2-FLAIR hyperintensity within the bilateral cerebellar hemispheres with mass effect on the fourth ventricle (A and B), without evidence of postcontrast enhancement (C) and with mild restricted diffusion on DWI (D) and the corresponding ADC map (E). A follow-up scan 1 month later (F) demonstrates resolution of the T2-FLAIR hyperintensity and associated mass effect on the fourth ventricle following a steroid taper. B.P. Kelley et al. AJNR Am J Neuroradiol 2017;38:1070-1078 ©2017 by American Society of Neuroradiology