Síndrome de Muir-Torre

relato de caso e caracterização molecular

Autores

  • Carolina Alejandra Rios Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, and Surgical Service
  • Ricardo Villalón Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile and Surgical Service
  • Jorge Muñoz Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, and Surgical Service
  • Mónica Acuña Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile and Surgical Service
  • Lucía Cifuentes Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile and Surgical Service

Palavras-chave:

Síndrome de Muir-Torre, Neoplasias colorretais hereditárias sem polipose, Patologia molecular, Instabilidade de microssatélites, Mutação

Resumo

CONTEXTO: A síndrome de Muir-Torre é uma genodermatose autossômica dominante rara causada por mutações nos genes de reparo de incorreções. Caracteriza-se pela presença de tumores sebáceos da pele e doenças malignas internas, afetando principalmente cólon, reto e trato urogenital. A consciência desta síndrome pelos médicos pode levar ao diagnóstico precoce dessas doenças malignas e a um melhor prognóstico. RELATO DE CASO: Relatamos o caso de uma paciente chilena que, ao longo de vários anos, teve lesões cutâneas múltiplas, câncer de endométrio e câncer de cólon. A síndrome foi diagnosticada com técnicas moleculares, como a análise de instabilidade de microssatélites, imunoistoquímica e sequenciamento de DNA, o que nos permitiu encontrar a mutação causadora. CONCLUSÃO: Diagnóstico molecular é uma ferramenta muito útil, uma vez que permite que os clínicos confirmem a presença de mutações causadoras de síndrome de Muir-Torre. É complementar para a análise dos dados clínicos, tais como a apresentação dermatológica, a presença de doenças malignas viscerais e história familiar de tumores colorrectais, e fornece conhecimentos importantes para ajudar os médicos e os pacientes a escolher entre opções de tratamento.

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Biografia do Autor

Carolina Alejandra Rios, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, and Surgical Service

PhD. Scientific Researcher, Genetic Epidemiology Laboratory, Department of Human Genetics, School of Medicine, University of Chile, Santiago, Chile.

Ricardo Villalón, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile and Surgical Service

MD. Attending Physician, Surgical Service, Complejo Asistencial Barros Luco Trudeau, Santiago, Chile.

Jorge Muñoz, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, and Surgical Service

IBSc. Medical technologist, Pathological Anatomy Service, Clínica Dávila, Santiago, Chile.

Mónica Acuña, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile and Surgical Service

MSc. Associate Professor, Department of Human Genetics, Institute of Biomedical Sciences, School of Medicine, University of Chile, Santiago, Chile.

Lucía Cifuentes, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile and Surgical Service

MD, MSc. Full Professor, Department of Human Genetics, Institute of Biomedical Sciences, School of Medicine, University of Chile, Santiago, Chile.

Referências

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Publicado

2014-02-02

Como Citar

1.
Rios CA, Villalón R, Muñoz J, Acuña M, Cifuentes L. Síndrome de Muir-Torre: relato de caso e caracterização molecular. Sao Paulo Med J [Internet]. 2º de fevereiro de 2014 [citado 14º de março de 2025];132(1):61-4. Disponível em: https://periodicosapm.emnuvens.com.br/spmj/article/view/1172

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Relato de Caso