Vitamin B¹² deficiency: An unusual cause for recurrent generalised seizures with pancytopaenia

We report the case of a 70-year-old man with pancytopaenia and new-onset recurrent generalised seizures. Detailed evaluation yielded a diagnosis of vitamin B₁₂ deficiency. He was treated with parenteral vitamin B ₁₂ supplementation and antiepileptic drugs. Seizures are an unusual manifestation of vitamin B₁₂ deficiency and possible mechanisms of epileptogenesis are discussed.