RT Journal Article SR Electronic T1 Bickerstaff’s brainstem encephalitis mimicking herpetic encephalomyelitis in a liver transplant patient with anti-GQ1b antibodies JF BMJ Case Reports JO BMJ Case Reports FD BMJ Publishing Group Ltd SP e251784 DO 10.1136/bcr-2022-251784 VO 15 IS 12 A1 Sehajdev Singh Bhatia A1 Carlo Canepa A1 Asha Notarianni YR 2022 UL http://casereports.bmj.com/content/15/12/e251784.abstract AB A woman in her late 70s with a history of liver transplant presented with ophthalmoplegia, ataxia, areflexia, positive Babinski’s sign and reduced consciousness. This followed an antecedent illness in the form of a herpes zoster infection. MRI of the brain/spinal cord, cerebrospinal fluid analysis with viral PCR and routine blood tests were normal, and tacrolimus neurotoxicity was ruled out. Serum anti-GQ1b antibodies were positive. A diagnosis of Bickerstaff’s brainstem encephalitis was made, forming part of the continuum that involves Miller-Fisher syndrome, entitled the ‘anti-GQ1b syndrome’. Complete recovery ensued without intravenous immunoglobulins or plasma exchange. The role of monitoring anti-ganglioside pattern change to predict or confirm disease recurrence and disease severity is further discussed.