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Muir-Torre Syndrome: case report and molecular characterization / Sindrome de Muir-Torre: relato de caso e caracterizacao molecular
Rios, Carolina Alejandra; Villalon, Ricardo; Munoz, Jorge; Acuna, Monica; Cifuentes, Lucia.
Affiliation
  • Rios, Carolina Alejandra; University of Chile. School of Medicine. Department of Human Genetics. Genetic Epidemiology Laboratory. Santiago. CL
  • Villalon, Ricardo; University of Chile. School of Medicine. Department of Human Genetics. Genetic Epidemiology Laboratory. Santiago. CL
  • Munoz, Jorge; University of Chile. School of Medicine. Department of Human Genetics. Genetic Epidemiology Laboratory. Santiago. CL
  • Acuna, Monica; University of Chile. School of Medicine. Department of Human Genetics. Genetic Epidemiology Laboratory. Santiago. CL
  • Cifuentes, Lucia; University of Chile. School of Medicine. Department of Human Genetics. Genetic Epidemiology Laboratory. Santiago. CL
São Paulo med. j ; 132(1): 61-64, 2014. tab, graf
Article in English | LILACS | ID: lil-699299
Responsible library: BR1.1
ABSTRACT
CONTEXT Muir-Torre syndrome is a rare autosomal dominant genodermatosis caused by mutations in the mismatch repair genes. It is characterized by the presence of sebaceous skin tumors and internal malignancies, affecting mainly the colon, rectum and urogenital tract. Awareness of this syndrome among physicians can lead to early diagnosis of these malignancies and a better prognosis. CASE REPORT We report the case of a Chilean patient who, over the course of several years, had multiple skin lesions, endometrial cancer and colon cancer. The syndrome was diagnosed using molecular techniques such as microsatellite instability analysis, immunohistochemistry and DNA sequencing, which allowed us to find the causative mutation.

CONCLUSION:

Molecular diagnostics is a highly useful tool, since it allows clinicians to confirm the presence of mutations causing Muir-Torre syndrome. It is complementary to the analysis of the clinical data, such as dermatological presentation, presence of visceral malignancies and family history of colorectal tumors, and it provides important knowledge to help physicians and patients choose between treatment options. .
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. .
Subject(s)


Full text: Available Collection: International databases Database: LILACS Main subject: Molecular Diagnostic Techniques / Muir-Torre Syndrome Type of study: Diagnostic study / Etiology study / Prognostic study / Screening study Limits: Female / Humans Language: English Journal: São Paulo med. j Journal subject: Cirurgia Geral / Ciˆncia / Ginecologia / Medicine / Medicina Interna / Obstetr¡cia / Pediatria / Sa£de Mental / Sa£de P£blica Year: 2014 Document type: Article Affiliation country: Chile Institution/Affiliation country: University of Chile/CL

Full text: Available Collection: International databases Database: LILACS Main subject: Molecular Diagnostic Techniques / Muir-Torre Syndrome Type of study: Diagnostic study / Etiology study / Prognostic study / Screening study Limits: Female / Humans Language: English Journal: São Paulo med. j Journal subject: Cirurgia Geral / Ciˆncia / Ginecologia / Medicine / Medicina Interna / Obstetr¡cia / Pediatria / Sa£de Mental / Sa£de P£blica Year: 2014 Document type: Article Affiliation country: Chile Institution/Affiliation country: University of Chile/CL
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