ABSTRACT
Zosteriform lichen planus is a rare variant of lichen planus, which shows lichenoid papules in a dermatomal arrangement. Unlike the linear lichen planus developing a linear pattern, zosteriform lichen planus forms a broader band that follows the dermatomes. A few cases of zosteriform lichen planus occurring on the site of healed herpes zoster have been reported, and were assumed to represent Wolf's isotopic response. However, even fewer cases have been reported that developed without any previous history of herpes zoster. We present a 32-year-old male patient who showed a hyperpigmented papuloplaques in a zosteriform arrangement along the right upper back, shoulder and arm without a history of herpes zoster.
Subject(s)
Adult , Humans , Male , Arm , Herpes Zoster , Lichen Planus , Lichens , ShoulderABSTRACT
Lichen planus is a lichenoid disorder characterized by shiny, flat topped papules. In addition to the classical appearance, there are several variants. Zosteriform lichen planus is a rare variant of lichen planus, which can be differentiated from linear lichen planus by not linear, but zosteriform distriburion. We herein present a case of zosteriform lichen planus in a 28-year-old man with pruritic, grouped, erythematous to brownish papules in zosteriform arrangement on the right flank for 4 months. He had no history of any previous skin disease.
Subject(s)
Adult , Humans , Lichen Planus , Lichens , Skin DiseasesABSTRACT
Wolf's isotopic response describes the occurrence of a new, unrelated disease that appears at the same location as a previously healed disease. The pathogenesis of the lesions remains unclear, but several possibilities are considered: a viral origin, an immunologic origin, a vascular origin, and a neural origin. We, herein, present a case of a zosteriform lichen planus occurring at the site of herpes zoster after an episode of herpes zoster infection.
Subject(s)
Herpes Zoster , Lichen Planus , LichensABSTRACT
Zosteriform lichen planus is a rare variant of lichen planus, which can be differentiated from linear lichen planus by not linear, but zosteriform distribution. The pathogenesis of zosteriform lichen planus has been most commonly described as a Koebner phenomenon. We, herein, present a case of zosteriform lichen planus in a 69-year-old man with pruritic, grouped, violaceous papules in zosteriform arrangement on his left flank for 3 months. He had no history of any previous skin disease. Histopathologically, the papule showed characteristic findings consistent with lichen planus.
Subject(s)
Aged , Humans , Lichen Planus , Lichens , Skin DiseasesABSTRACT
Many cutaneous reactions have been known to occur within resolved herpes zoster lesions. These include granuloma annulare, pseudolymphoma, lymphoma, granulomatous vasculitis, lichen planus and other dermatoses. The pathogenesis of these reactions remains unclear and it has been proposed that they may represent isotopic response. A dermatomal distribution in lichen planus is very rare. We report here a case of zosteriform lichen planus that was developed on the site previously affected by herpes zoster.