Atypical presentation of pellagra with black urine: A clinical conundrum
Chathuri Lakna Munagama,
Shehan Silva
Abstract:Niacin (Vitamin B3) plays a crucial role as a vitamin in cellular energy production, metabolism, and DNA repair. A severe deficiency of this vitamin can lead to pellagra, which is characterized by dermatitis, dementia, diarrhoea and eventually death if untreated. A 68-year-old woman with a poor socioeconomic background presented with photosensitive dermatitis, fever, abdominal pain, and diarrhoea. Her urine changed to port wine colour following sun exposure. Porphyria cutanea tarda was excluded in the absence … Show more
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