Indian Journal of Dermatology, Venereology and Leprology, May 1st, 2004
The Koebner (isomorphic) phenomenon (response) is probably one of the most well known phenomena in dermatology and is named after the man who was the first to describe it.[1 ] The isomorphic phenomenon is now well documented in a number of skin diseases.
Definition
The Koebner phenomenon is the development of isomorphic pathologic lesions in the traumatized uninvolved skin of patients who have cutaneous diseases.[2 ] It refers to the fact that in persons with certain skin diseases, especially psoriasis, trauma is followed by new lesions in the traumatized but otherwise normal skin, and these...
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