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1.
Rev. argent. dermatol ; 102(1): 66-75, mar. 2021. graf
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1356964

ABSTRACT

RESUMEN El liquen plano (LP)es una enfermedad inflamatoria crónica que afecta piel, mucosas y anexos. Si bien existen múltiples teorías, la etiología es aún desconocida.Clínicamente se caracteriza por pápulasplanas poligonaleso placas brillantes, violáceas,con descamacióny pruriginosas. La variante unilateral es infrecuente y más común en población pediátrica. Se presenta el caso de una paciente de sexo femenino, de 41 años de edad,con un LPvariante unilateral, sin una distribución definida.


ABSTRACT Lichen planus is a chronic inflammatoryimmune-mediateddisease that affects skin, mucous membranes, nails and hair. It affects most commonly adult patients. There is an extended classification of the lichen planus variants.The classic type is characterized by pruriticpolygonal, flat-topped, violaceous papules and plaques, reticulated, with fine white scale Wickham'sstriae. It usually affects wrists and forearms, trunk, anterior aspect of thelegs and oral mucous. The unilateral variant is rare and more common in pediatric patients.When this variant is present, the clinical features are similar to the classic one. The unilateral lesions can be seenwith a methameric distribution (zosteriformdermatosis) or along the Blaschko lines (Blaschkoiddermatosis). A 41-year-old female presented a history of pruritic lesions in trunk and left limb that had appeared 4 months earlier.

2.
Rev. argent. dermatol ; 94(2): 0-0, jun. 2013. ilus
Article in Spanish | LILACS | ID: lil-694876

ABSTRACT

El mastocitoma solitario es la segunda en frecuencia, de las variantes de las mastocitosis, caracterizada por una proliferación de los mastocitos tisulares que afecta únicamente a la piel, comúnmente congénita o de aparición en las primeras semanas de vida, con etiología aún desconocida y buen pronóstico, ya que tiene una resolución espontánea en la adolescencia. Presentamos el caso de un paciente quien desde su nacimiento, presentaba una placa en antebrazo derecho, con signo de Darier negativo y asintomatomática. Con los datos clínicos y los antecedentes personales se realiza biopsia de piel, mediante la que confirmamos el diagnóstico de mastocitoma solitario.


Solitary mastocytoma is the second most frequent disease within mastocytosis. It is characterized by a hyperplasia of the mastocitos tissue that affects only the skin. It is usually congenital though it can also appear in the first weeks of life, with unknown etiology; it has a good prognosis due to its spontaneous resolution in the adolescence. This paper presents case of a patient who, from birth, has had some plaque in his right forearm, with negative and asymptomatic Darier's sign. The skin biopsy has been performed with clinical data and personal history, thus confirming the diagnosis of solitary mastocytoma.

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