research Reversible cutaneous hyperpigmentation and nails with white hair due to vitamin B12 deficiency.
Vitamin B12 deficiency can cause skin darkening and white hair, but it's reversible.
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5 / 1000+ resultsresearch Histopathologic Findings of Cutaneous Hyperpigmentation in Addison Disease and Immunostain of the Melanocytic Population
This study examined skin biopsies from a woman with Addison disease and found melanocytic hyperpigmentation in the epidermis, with a notable melanocyte/keratinocyte ratio indicating increased melanocyte presence in the arm compared to the thigh.
research [Association of a pediatric bullous eruption, cutaneous and muscular atrophy, hyperpigmentation and dysmorphism. A new entity?].
This case report describes a young patient with a unique combination of dysmorphism, bullous eruption, skin and muscle atrophy, and hyperpigmentation that doesn't fit existing nosological categories.
research Reversible Facial Hyperpigmentation Associated With Vitamin B12 Deficiency
This case report describes a rare instance of reversible melasma-like hyperpigmentation linked to vitamin B12 deficiency due to pernicious anemia, and explores possible mechanisms for this association.
research KNUCKLE HYPERPIGMENTATION AS A PRELIMINARY MARKER OF VITAMIN B 12 DEFICIENCY: A CASE SERIES
This study highlighted knuckle hyperpigmentation as an early sign of vitamin B12 deficiency, indicating a potential link to megaloblastic anemia in the vegetarian population in India.
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