The koebner phenomenon is one of the most wellknown entities in dermatology. The koebner phenomenon or kobner phenomenon also called the koebner response or the. First described in 1871, the koebner phenomenon is one of the most wellknown entities in dermatology. This page was last edited on 2 october 2019, at 09. Wolfs isotopic response is the emergence of new lesions in the exact place of previous, healed, lesions and is not necessarily due to trauma. This isomorphic phenomenon is now known to involve numerous diseases, among them vitiligo, lichen planus, and darier disease. The koebner phenomenon kp was first described in 1876 by heinrich koebner, a german dermatologist who was the founder of the dermatology department at the university of breslau. The koebner reaction in psoriasis has been observed after. This isomorphic phenomenon is now known to involve numerous diseases. When psoriasis lesions form in different areas than usual, its known as the koebner phenomenon. If patient has any of these disease like vitiligo, pemphigus, psoriasis etc, if trauma is given on healthy skin of patient, lesions which are similar to.
Heinrich koebner, a dermatologist from the 19th century. Vascular trauma and the pathogenesis of the koebner reaction in. He reported the formation of psoriasiform lesions in uninvolved skin of psoriatic patients after cutaneous trauma, such as excoriations, tattoos, and horse bites. The reverse koebner phenomenon is the disappearance of a skin lesion after trauma to the area. Salvatore chimenti, specialista medicina interna, bari. Doctors call this reaction the koebner phenomenon, and it happens to 1 out of 4 people who have psoriasis. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Started in 1995, this collection now contains 6767 interlinked topic pages divided into a tree of 31 specialty books and 732 chapters. Summary koebner phenomenon was first described in 1877 as the appearance of psoriatic lesions in the uninvolved skin of psoriatic patie nts as a consequence. All structured data from the file and property namespaces is available under the creative commons cc0 license. It was first described by heinrich koebner in 1876 as the formation of psoriatic lesions in uninvolved skin of psoriatic patients after cutaneous trauma. Generalized guttate morphea associated to koebner phenomenon summary morphea or localized scleroderma, is a chronic connective tissue disease characterized by hardening of the skin secondary to an excess of production of collagen.
Heinrich koebner is credited with the first adequate description of this peculiar disposition of psoriatic skin. More recently, the definition has been extended to include lesions developed after trauma in people with no preexisting dermatosis. Pemphigus vulgaris is an autoimmune disease characterized by acantholysis and intraepidermal bullae formation. Files are available under licenses specified on their description page. Pemphigus vulgaris beginning as the koebner phenomenon. The koebner phenomenon may result from either a linear exposure or irritation.
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