Resolution of acute cerebellar ataxia with vitamin B12 supplementation in a 19-year-old female with normal vitamin B12 levels

Acute cerebellar ataxia, characterized by incoordination of movement and gait instability, presents a complex diagnostic challenge for clinicians. Vitamin B12 deficiency is a well-established cause of neurological dysfunction, including ataxia. However, diagnosis can be complicated by the presence of normal serum vitamin B12 levels. This case report presents an unusual presentation of acute cerebellar ataxia in a young woman with normal vitamin B12 levels. The case highlights the importance of considering a broader diagnostic approach and the potential therapeutic benefit of vitamin B12 supplementation even in the absence of overt vitamin B12 deficiency.