Vitamin B12 deficiency neuropathy; a rare diagnosis in young adults: a case report

Résumé

BACKGROUND: Vitamin B12 deficiency is a metabolic disorder with many causes. It often presents with megaloblastic anaemia and neurological disorders which entail prompt treatment. The diagnosis of Vitamin B12 deficiency is challenging in resource limited-settings due to limited access to diagnostic tools and unfamiliarity with the disease, owing to its rarity especially in young people. CASE PRESENTATION: A 28 year old female Cameroonian presented with progressive burning painful sensations on the upper trunk, paraesthesia and numbness of the upper and lower limbs for a period of 5 years. Before presenting to us, she had consulted in numerous health institutions for which she had been treated for diverse pathologies with no relieve of symptoms. After clinical and laboratory evaluation, a diagnosis of vitamin B12 deficiency-associated neuropathy was made. She was placed on oral vitamin B12 supplements at 2 mg daily for 3 months. Follow up was marked by good clinical recovery after 1 month of therapy. CONCLUSION: Vitamin B12 deficiency neuropathy is a rare debilitating disease that affects mostly the elderly. However; young adults with neuropathic symptoms warrant a high index of suspicion. Peripheral blood smears and complete blood counts are sufficiently diagnostic in resource-limited settings.

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