Pellagra: how did it come to stand from clinical changes to vitamin deficiency ?
The words of origin are: pellis (Latin) = skin aegre (Latin) = sick, diseased …or… aγρa (Greek) = affection, condition This condition can be summarized by the 4 d’s: dermatitis diarrhea dementia death The skin is characterized by the following: photosensitivity of exposed areas erythema accompanied sometimes by skin sloughing, followed by pigmentation and lichenification…