ArticleNutrients2017
Sensory Neuronopathy Revealing Severe Vitamin B12 Deficiency in a Patient with Anorexia Nervosa: An Often-Forgotten Reversible Cause.
Article in Nutrients, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- The Relationship Between Precuneus Thickness and Psychopathology in Adolescent Females With Anorexia Nervosa.The International journal of eating disorders · 2026Article
- The Neurological Sequelae of Vitamin B12 Deficiency: A Systematic Review and Randomized Controlled Trial.Cureus · 2025Review
- The mechanism of enterogenous toxin methylmalonic acid aggravating calcium-phosphorus metabolic disorder in uremic rats by regulating the Wnt/β-catenin pathway.Molecular medicine (Cambridge, Mass.) · 2025Article
- Peroneal mononeuropathy and polyneuropathy in adolescents with Anorexia Nervosa: a case report and literature review.European journal of clinical nutrition · 2024Review
- Methylcobalamin Deficiency Presenting as Thalamic Syndrome in the Elderly: Association or Chance?Cureus · 2024Article
- Review
- Micronutrients Deficiencies in 374 Severely Malnourished Anorexia Nervosa Inpatients.Nutrients · 2019Article
- Medication in AN: A Multidisciplinary Overview of Meta-Analyses and Systematic Reviews.Journal of clinical medicine · 2019Review
- Article
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3 authors.
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Abstract
Vitamin B12 (B12) deficiency is known to be associated with various neurological manifestations. Although central manifestations such as dementia or subacute combined degeneration are the most classic, neurological manifestations also include sensory neuropathies. However, B12 deficiency is still rarely integrated as a potential cause of sensory neuronopathy. Moreover, as many medical conditions can falsely normalize serum B12 levels even in the context of a real B12 deficiency, some cases may easily remain underdiagnosed. We report the illustrating case of an anorexic patient with sensory neuronopathy and consistently normal serum B12 levels. After all classical causes of sensory neuronopathy were ruled out, her clinical and electrophysiological conditions first worsened after folate administration, but finally improved dramatically after B12 administration. B12 deficiency should be systematically part of the etiologic workup of sensory neuronopathy, especially in a high risk context such as anorexia nervosa.
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