Neoplasias de origen sebáceo asociadas a Síndrome de Muir-Torre. A propósito de un caso / Sebaceous neoplasias associated to Muir-Torre syndrome. A propos of a case

El Síndrome de Muir-Torre (SMT) descrito desde 1967, es una genodermatosis con herencia autosómica dominante y penetrancia variable, caracterizada por la presencia de neoplasias cutáneas de origen sebáceo manifestado en áreas seborreicas, como la cara y cuero cabelludo. Los adenomas son los tumores sebáceos más frecuentes. Se han descrito también hiperplasias, neoformaciones sebáceas quísticas, epiteliomas o carcinoma. Los mismos pueden presentarse de manera aislada o múltiple; en conjunto con al menos una neoplasia visceral maligna. Entre las descritas con frecuencia están las gastrointestinales. Se pueden asociar a otras neoplasias, como las renales, las de endometrio, útero y de laringe. El diagnóstico clínico está dado por la presencia y asociación de un tumor visceral primario y otro de origen sebáceo. El tratamiento de esta entidad se basa en la exéresis de los tumores y el seguimiento especializado según el sistema afectado. Se presentó el caso de un hombre de 62 años de edad, cuya afección cutánea demostró múltiples lesiones de origen sebáceo de siete años de evolución por lo que se le realizaron complementarios para identificar entidades asociadas (AU).

The Muir-Torre syndrome, described since 1967, is a genodermatosis with dominant autosomal inheritance and variable penetrance, characterized by the presence of sebaceous skin neoplasias manifested in seborrheic areas as the face and scalp. Adenomas are the most frequent sebaceous tumors. Hyperplasia, cystic sebaceous neoformations, epitheliomas or carcinomas have been also described. They could appear in an isolated or multiple way, in all with at least one malignant visceral neoplasia. The gastrointestinal ones are among those frequently described. They might be associated to other neoplasias, as the renal ones, or the ones of the endometrium, the uterus and the larynx. The clinical diagnosis is given by the presence and association of one primary visceral tumor and another of sebaceous origin. The treatment of this entity is based on the tumors resection and the specialized follow-up according to the affected system. The case of a man, aged 62 years, is presented; his cutaneous condition showed multiple sebaceous lesions of seven years of evolution. Complementary exams were carried out for identifying associated lesions (AU).

Syndrome in question.

Muir-Torre syndrome is a rare genodermatosis characterized by the occurrence of at least one sebaceous tumor associated with visceral neoplasia, but with no predisposing factors. The sebaceous neoplasm may appear before, during or after the diagnosis of colorectal cancer. As it is regarded as a subtype of nonpolyposis hereditary colorectal cancer, it is important to evaluate the patient's first-degree relatives. The clinical course of the neoplasm is usually more indolent and the syndrome has a good prognosis. We report the case of a patient who, after a ten-year diagnosis of colorectal cancer, presented with multiple sebaceous neoplasms.

Syndrome in question

AbstractMuir-Torre syndrome is a rare genodermatosis characterized by the occurrence of at least one sebaceous tumor associated with visceral neoplasia, but with no predisposing factors. The sebaceous neoplasm may appear before, during or after the diagnosis of colorectal cancer. As it is regarded as a subtype of nonpolyposis hereditary colorectal cancer, it is important to evaluate the patient's first-degree relatives. The clinical course of the neoplasm is usually more indolent and the syndrome has a good prognosis. We report the case of a patient who, after a ten-year diagnosis of colorectal cancer, presented with multiple sebaceous neoplasms.