title: [Anti-GD1b IgG antibody-related Guillain-Barré syndrome initially mimicking brainstem infarction].
abstract: We described a 58-year-old woman with Guillain-Barré syndrome, who initially showed rapid progression of brainstem infarction-like signs. She developed superficial sensory disturbance on the left side, dysarthria, and left-predominant limb weakness within a few hours. She showed bilateral extensor plantar responses and head CT scan detected no abnormality. It was difficult to be distinguished from brainstem infarction until symmetrical limb weakness and generalized areflexia appeared. Serum anti-GD1b IgG antibody with cross-reactivity with GM1b was detected. Cerebrospinal fluid examination revealed albuminocytologic dissociation on day 5. After 5 sessions of immunoadsorption therapy, her symptoms gradually lessened. Anti-GD1b antibody has been detected in patients with sensory ataxic neuropathy. Our patient, however, was characterized with early involvement of brainstem with ataxia of cerebellar type. Our case suggests that anti-GD1b antibody-associated neuropathy has a broad spectrum of clinical features, which are related to cross-reactivity of this antibody.
authors.affiliation: Department of Neurology, Ube Industry Central Hospital.
authors.forename: N
authors.initials: N
authors.lastname: Ikuta
authors.forename: M
authors.initials: M
authors.lastname: Koga
authors.forename: J
authors.initials: J
authors.lastname: Ogasawara
authors.forename: M
authors.initials: M
authors.lastname: Morimatsu
authors.forename: N
authors.initials: N
authors.lastname: Yuki
mesh_terms: D020526:Brain Stem Infarctions / Q000175:diagnosis / Q000209:etiology*; D003429:Cross Reactions; D003937:Diagnosis, Differential; D005260:Female; D005732:Gangliosides / Q000276:immunology*; D020275:Guillain-Barre Syndrome / Q000175:diagnosis* / Q000276:immunology; D006801:Humans; D007074:Immunoglobulin G / Q000097:blood*; D008875:Middle Aged
chemical_list: D005732:Gangliosides; D007074:Immunoglobulin G; C033851:ganglioside, GD1b