BACKGROUND
Pellagra is an exceptional disorder in France. The classical description of pellagra associates a photoinduced rash with neurological impairment and intestinal dysfunction. Without adapted treatment, the progression is fatal.
METHODS
A 62 year-old women developed a photoinduced rash,
Pellagra is a systemic disturbance caused by a cellular deficiency of niacin, resulting from inadequate dietary nicotinic acid and/or its precursors, the essential amino-acid tryptophan. In Europe and North America cases of pellagra are rarely encountered, but in some developing countries this
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