Sebaceoma. Reporte de un caso / Sebaceoma. Case report

RESUMEN

RESUMEN El sebaceoma es un tumor de las glándulas sebáceas. Vinculado a una posible alteración en la vía de señalización Wnt/beta-catenina. Se caracteriza clínicamente por ser una lesión exofítica, más comúnmente de aparición solitaria y amarillenta. Cuando en un mismo paciente los tumores son múltiples debemos descartar la presencia del síndrome de Muir-Torre, un trastorno asociado a la presencia de neoplasias malignas internas. En la histopatología, el diagnóstico diferencial se realizaprincipalmente con el adenoma sebáceo, teniendo en cuenta el porcentaje de células germinativas o inmaduras en los lóbulos. El tratamiento de elección es la extirpación quirúrgica, aunque también se puede emplear la electrodesecación, entre otros. Se decide reportar el caso de una paciente femenina con un tumor sebáceo de poca frecuencia, haciendo una revisión de las características clínicas e histopatológicas que nos ayuden a disminuir las dificultades en el diagnóstico.

ABSTRACT

ABSTRACT Sebaceoma is a rare sebaceous gland tumor, named by Troy and Ackerman in 1984. A possible alteration in the Wnt / beta-catenin signaling pathway has been linked to its etiology and would play an important role in genesis of some tumors, including sebaceous. It is clinically characterized by being an exophytic lesion, most commonly of a solitary, yellowish appearance, which appears in seborrheic areas, although the symptoms can be very heterogeneous. When tumors are multiple in the same patient, we must rule out the presence of Muir-Torre syndrome, an autosomal dominant disorder that is associated with the presence of internal malignancies. In Sebaceoma dermoscopy, an amorphous yellowish erythematous area is generally found, which suggests the sebaceous etiology of the lesion, but currently the definitive diagnosis can only be confirmed with histopathology. The differential diagnosis is made mainly with sebaceous adenoma, taking into account the percentage of germ cells or immature lobes, being less than 50% in sebaceous adenoma and more than 50% in sebaceoma, the latter also tends to be of greater size and depth. The treatment of choice is surgical removal, although electrodesiccation, cryotherapy, or curettage can also be used. It was decided to report the case of a female patient with an infrequent sebaceous tumor, making a review of the clinical and histopathological characteristics that help us decrease the difficulties in diagnosis.