Rare Sensory Ataxic Variant of Guillain-Barre Syndrome: A Case Report.

The sensory ataxic variant of Guillain-Barre syndrome (GBS) is a rare subtype, with limited case reports available. We present the case of a previously healthy 26-year-old female university student who presented with bilateral foot numbness and unsteady gait for five days, without limb weakness. There were no signs of infection or recent history suggestive of infection. Examination revealed reduced pain and light touch sensation, as well as proprioception impairment in the bilateral distal lower limb, accompanied by an ataxic gait. Bilateral upper and lower limb power was normal. Cerebrospinal fluid (CSF) studies showed albuminocytological dissociation, while nerve conduction studies indicated unrecordable sensory responses with normal motor responses. Through a comprehensive evaluation of history, examination, and investigations, other potential differential diagnoses were excluded. Then the patient was diagnosed with a sensory ataxic variant of Guillain-Barre syndrome and treated with intravenous immunoglobulin (IVIG). Over time, the patient demonstrated gradual improvement and was able to resume her university studies four months after discharge.