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What is What is the name of this appearance which is seen in pellagra? and explain in detail?
This is Casal's necklace shown in picture, which occurs in Vitamin B3/ Niacin deficiency. Niacin is formed from tryptophan amino acid. So, tryptophan deficiency can lead to Casal's necklace. Pellagra Etiology: Dietary deficiency of Niacin or its precursor tryptophan. C/f: Middle aged persons Pellagra: - (Dermatitis, Dementia, Diarrhea, Death) T/t: Niacinamide 300-500mg/dayorally in divided doses.