Presentación de casos clínicos RESUMENEl xantogranuloma juvenil es una patología benigna y representa la forma más común de histiocitosis de células no Langerhans. Está caracterizado por la presencia de pápulas o nódulos firmes de coloración rosada o amarillo amarronada, que comprometen, principalmente, la piel y, de forma excepcional, otros órganos. Es una entidad autolimitada con una involución espontánea en los primeros 5 años de vida. Presentamos a una paciente de 1 mes de vida con una lesión congénita en el abdomen, cuya histopatología mostró la presencia de células gigantes multinucleadas de Touton, características de esta patología. Destacamos la presentación infrecuente de este tipo de lesión y la importancia de los múltiples diagnósticos diferenciales que se deben tener en cuenta debido a la edad de la paciente y a sus características. Palabras clave: histiocitosis de células no Langerhans, xantogranuloma juvenil, pared abdominal. ABSTRACTJuvenile xanthogranuloma is a bening pathology and it represents the most common form of non-Langerhans cell histiocytosis. It is characterized by the presence of papules or firm nodules of a pinkish or yellow-brownish nature, which mainly compromise the skin and, exceptionally, other organs. It is a self-limited entity having a spontaneous regression during the first five years of life. We report the case of a one-month-old patient who presented a congenital tumor in the abdomen, whose histopathology showed the presence of multinucleated giant Touton cells, which are typical of this pathology. We emphasize the rare occurrence of this type of lesion and the importance of the multiple differential diagnosis to be taken into account due to the age of the patient and the characteristics of the lesion.
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