Koebner phenomenon

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Dr N van Geel and colleagues of Ghent has looked at the Koebner phenomenon (KP), the occurrence of the development of vitiligo within an area of skin that has been damaged by localized often mild trauma (Br J Dermatol 2012;167:1017-24.). They developed a new assessment method for KP, taking into account both history and clinical examination, which seems to be a useful and valuable tool for assessing KP in daily practice. The results support the hypothesis that KP may be used to assess and predict the course of vitiligo