Does vitiligo have Koebner phenomenon?

Vitiligo is a disease that causes loss of skin pigmentation wherein epidermal melanocytes lose their function. The incidence of vitiligo worldwide is approximately 0.5% to 4%1. Lesions at physical injury areas in normal/unaffected skin of patients with cutaneous diseases are referred to as Koebner phenomenon (KP)2.

What is the Koebner effect?

The Koebner phenomenon (KP), first described in 1876 by Heinrich Koebner, is the appearance of new skin lesions on previously unaffected skin secondary to trauma.[1] This phenomenon is also termed the isomorphic (from Greek, “equal shape”) response, given the fact that the new lesions that appear are clinically and …

How is Koebner phenomenon treated?

The symptoms of the Koebner phenomenon are treated in the same way that psoriasis and PsA are treated. If you experience symptoms, you should consult a dermatologist who specializes in treating psoriasis. For skin lesions, they may recommend topical medications, ultraviolet light therapy, or oral medications.

What is reverse Koebner phenomenon?

The reverse Koebner phenomenon is the disappearance of a skin lesion after trauma to the area. Wolf’s isotopic response is the emergence of a new dermatosis in the exact place of a previous unrelated dermatosis.

What is Trichrome vitiligo?

Abstract. Background: The term trichrome vitiligo describes lesions that have a tan zone of varying width between normal and totally depigmented skin, which exhibits an intermediate hue. However, the pathogenesis and the histopathologic characteristics of trichrome vitiligo are unknown.

What is GA skin condition?

Granuloma annulare (gran-u-LOW-muh an-u-LAR-e) is a skin condition that causes a raised rash or bumps (lesions) in a ring pattern. The most common type affects young adults and usually affects the hands and feet. Minor skin injuries and some drugs might trigger the condition.

What is mucosal vitiligo?

Vitiligo is the most common depigmenting, chronic acquired disease of the skin and mucosa. However, vitiligo of an unclassified type and mucosal subtype affecting only one area of the mucosa is considered quite uncommon. The diagnosis of vitiligo, regardless of its type, is clinical.

What is blue vitiligo?

Blue vitiligo is a distinct variant of vitiligo characterized by a blue-grey appearance of the skin, which corresponds histologically with absence of epidermal melanocytes and presence of numerous dermal melanophages.

Why does koebner phenomenon occur?

Causes of the Koebner phenomenon that are secondary to scratching rather than an infective or chemical cause include vitiligo, psoriasis, lichen planus, lichen nitidus, pityriasis rubra pilaris, and keratosis follicularis (Darier disease).