Challenges in the Diagnosis and Management of the Miller Fisher Variant of Guillain-Barré Syndrome: A Case Report
Abstract
Miller Fisher syndrome (MFS) is a rare variant of Guillain-Barré syndrome (GBS), characterized by the triad of ophthalmoplegia, ataxia, and areflexia, often following a bacterial or viral illness. This case report presents a 58-year-old Hispanic female patient with a preceding streptococcal pharyngitis who developed symptoms of bilateral facial nerve palsy and lower limb ataxia. Cerebrospinal fluid (CSF) analysis revealed albuminocytologic dissociation and, combined with her presentation of ophthalmoplegia, ataxia, and areflexia, supported the diagnosis of MFS. Magnetic resonance imaging (MRI) and laboratory tests were performed, revealing nonspecific findings and a lack of evidence for alternative diagnoses. Despite the absence of electrodiagnostic studies or GQ1b antibody testing, intravenous immunoglobulin was initiated based on clinical suspicion. The patient's symptoms slowly improved, with the prognosis suggesting a need for long-term rehabilitation. This case highlights an unusual presentation of MFS, complicated by Raynaud's phenomenon and a rare infectious trigger of Streptococcus pyogenes, emphasizing the need for further research on atypical MFS presentations and the role of adjunct therapies in management.
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