Miller Fisher Syndrome as a Stroke Mimic: A Case Report.

Guillain-Barre syndrome (GBS) is a heterogeneous autoimmune disorder characterized by peripheral neuropathy, often triggered by preceding infections or vaccinations. It encompasses several clinical variants, including the rare Miller Fisher Syndrome (MFS), distinguished by ophthalmoplegia, ataxia, and areflexia. Diagnosis is challenging due to varied presentations and potential overlap with other neurological conditions. We present a case of a 42-year-old male initially suspected to have a stroke when he presented with unilateral loss of sensation and dysarthria. He was later diagnosed with MFS after his condition progressed and he developed generalized weakness, ophthalmoplegia, ataxia, and areflexia. Despite initial stability, his condition deteriorated, requiring intensive care. Early recognition and treatment, such as intravenous immunoglobulin (IVIg) and plasmapheresis, are critical for improving outcomes in GBS and its variants. This case underscores the importance of clinical suspicion and appropriate diagnostic strategies in managing these complex neurological disorders.