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Pathology
Water soluble, found in yeast, meat, beans, role as an enzyme cofactor
Aetiology
Alcohol excess, anorexia nervosa, malabsorption
Signs
Pellagra: symmetrical photosensitive hyperpigmented rash, red tongue
Symptoms
Rash, memory problems, diarrhoea
Investigations
Clinical diagnosis
Treatment
Medical: Vitamin B3 supplementation such as Niacin
Prognosis
Reversible
Dementia, Diarrhoea, Dermatitis
Key Facts
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Key Images
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Key References
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