Liquen nitidus generalizado. A propósito de un caso / Widespread lichen nitidus. A case report

El liquen nitidus es una dermatosis poco frecuente de origen desconocido caracterizada por pequeñas pápulas hemiesféricas, brillantes y del color de la piel, habitualmente asintomáticas o ligeramente pruriginosas. Tiene predilección por genitales, glúteos, abdomen inferior y superficies flexoras de antebrazos y muñecas. Ocasionalmente tiene una distribución generalizada. Su evolución es benigna con resolución espontánea en meses o años. Presentamos un caso de liquen nitidus generalizado (AU)

Lichen nitidus is a rare dermatosis of unknown etiology; it consists of small, hemispherical, shiny and flesh-coloured papules commonly asymptomatic or sometimes itchy. It has predilection on the genitals, lower abdomen, flexor surfaces of forearms and wrists. There are rare reports of patients having a more generalized distribution of lesions. Lichen nitidus lesions resolve spontaneously in months or years. We present a case of generalized lichen nitidus (AU)

Liquen nitidus: respuesta favorable a fototerapia UVB de banda estrecha. Presentación de dos casos / No disponible

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Pápulas pruriginosas en axilas / Pruritic papules in the axillae

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Liquen «nitidus» / Lichen nitidus

El liquen nitidus es una erupción liquenoide que se manifiesta en forma de pápulas brillantes de pequeño tamaño, del color de la piel normal, con carácter asintomático, de forma localizada o generalizada. La confirmación se realiza mediante estudio histopatológico, que presenta un infiltrado linfohistiocitario en dermis superficial con crestas interpapilares elongadas en los bordes abarcando dicho infiltrado. Por su tendencia a la resolución espontánea y la ausencia de síntomas, generalmente no precisa tratamiento

Lichen nitidus is a lichenoid eruption characterized by small, shiny, skin-colored papules. It is asymptomatic and can be localized or generalized. The diagnosis is confirmed by means of histopathological study, which reveals the presence of a lymphohistiocytic infiltrate in the superficial dermis, with elongated interpapillary crests on the borders encircling the infiltrate. Given that it tends to resolve spontaneously and the absence of symptoms, it generally does not require treatment

Periappendageal lichen nitidus: report of a case.

BACKGROUND: The histology of lichen nitidus has been described previously but a follicular variant has not been emphasized. METHOD: We report a case of lichen nitidus with periappendageal inflammation resulting in histologic similarities to lichen striatus. RESULTS: This case extends the spectrum of histologic findings in lichen nitidus and shows overlap in the distribution of the inflammatory infiltrate in lichen nitidus and lichen striatus.

Generalized lichen nitidus: a case report.

We report the case of a 6-year-old boy with disseminated papular lesions. Clinical and histopathologic examinations confirmed the diagnosis of lichen nitidus. There was no improvement during a three-year observation period, despite various methods of treatment. In the fourth year, we observed spontaneous resolution of the skin lesions after sun exposure in the summer.

Coexistence of atopic dermatitis and lichen nitidus in three patients.

Lichen nitidus (LN) is an uncommon skin disorder. We observed 3 patients with an association of lichen nitidus and atopic dermatitis (AD), which to the best of our knowledge has not been previously reported in the literature. It remains to be evaluated whether the association of LN and AD is fortuitous or not.