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. 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 disease do develop at site of trauma, this. He reported the formation of psoriasiform lesions in uninvolved skin of psoriatic patients after cutaneous trauma, such as excoriations, tattoos, and horse bites. The isomorphic phenomenon of koebner devinder mohan thappa. The koebner phenomenon or kobner phenomenon also called the koebner response or the.
Wolfs isotopic response is the emergence of new lesions in the exact place of previous, healed, lesions and is not necessarily due to trauma. The reverse koebner phenomenon is the disappearance of a skin lesion after trauma to the area. It describes the formation of psoriatic skin lesions on parts of the body that arent. This isomorphic phenomenon is now known to involve numerous diseases. Generalized guttate morphea associated to koebner phenomenon summary morphea or localized scleroderma, is a chronic connective tissue disease characterized by hardening of the. First described in 1871, the koebner phenomenon is one of the most wellknown entities in dermatology.
Koebner es muy conocido por su trabajo en micologia. The koebner phenomenon parapsoriasis rash for some people with psoriasis, even the tiniest pinprick or a bite from a mosquito can trigger plaques to appear in new places. In the field of dermatology, the renbok phenomenon is a phenomenon where one skin condition inhibits another. Cutaneous lesions due to koebner phenomenon have been reported in sarcoidosis and systemic lupus erythematosus. Certain medications are associated with triggering psoriasis. Files are available under licenses specified on their description page. All structured data from the file and property namespaces is available under the creative commons cc0 license. 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. It was first described by heinrich koebner in 1876 as the formation of psoriatic lesions in uninvolved skin of psoriatic patients after cutaneous trauma.
Il fenomeno di koebner detto anche isomorfismo reattivo, e tipico delle dermatosi in fase acuta eruttiva questo fenomeno e caratterizzato dalla comparsa, in sede di traumi anche lievi e di processi infiammatori, di tipiche lesioni della dermatosi in atto. The koebner phenomenon is one of the most wellknown entities in dermatology. Apr 16, 20 koebner phenomenon was initially reported as the formation of psoriasiform lesions after cutaneous trauma in the uninvolved skin of people with psoriasis. More recently, the definition has been extended to include lesions developed after trauma in people with no preexisting dermatosis.
Leukocytoclastic vasculitis manifested as a koebner. The koebner phenomenon can be treated if it is caught early enough. Heinrich koebner 18381904 was a german dermatologist who, in 1872, at the meeting of the silesian society of national culture, presented the phenomenon that would be named after him and, in 1877, published a paper describing the emergence of psoriatic lesions after such trauma as. The koebner phenomenon may result from either a linear exposure or irritation. Some reports suggest the koebner phenomenon may affect other surfaces apart from the skin, such as the oral mucosa, or cause lesions in internal organs, such as the lungs after damage from chronic infection. Psoriasis can appear in areas of the skin that have been injured or traumatized. Department of dermatology and std, jawaharlal institute of postgraduate medical education and research jipmer, pondicherry, india. It is also known as the reverse koebner phenomenon. Pemphigus vulgaris is an autoimmune disease characterized by acantholysis and intraepidermal bullae formation. The isomorphic phenomenon of koebner devinder mohan thappa department of dermatology and std, jawaharlal institute of postgraduate medical education and research jipmer, pondicherry, india.
Koebner phenomenon indicates the newly development of the same skin lesions as the preexisting dermatoses at the site of injury. The isomorphic koebner phenomenon is a response to different stimuli, and it has been. 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. Koebner phenomenon was initially reported as the formation of psoriasiform lesions after cutaneous trauma in the uninvolved skin of people with psoriasis. The koebner phenomenon is an aspect of psoriasis thats wellknown but not completely understood. This page was last edited on 2 october 2019, at 09. Heinrich koebner is credited with the first adequate description of this peculiar disposition of psoriatic skin. Started in 1995, this collection now contains 6767 interlinked topic pages divided into a tree of 31 specialty books and 732 chapters. Renbok phenomenon is the disappearance of an existing dermatosis after the onset of a new lesion at the same.
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