Hyperpigmentation is a known manifestation of Vitamin B12 deficiency but Vitamin B12 deficiency presenting with chief complaint of hyperpigmentation is relatively rare. We report a case of coeliac disease with nutritional anemia (vitamin B12, S. folate, iron) and vitamin B12 deficiency associated hyperpigmentation. Hyperpigmentation in this case was reversible and improved on B12 supplementation.
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Shyama et al. (2018) studied this question.
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