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Câncer de mama em homens

2014 
O câncer de mama em homens e uma doenca pouco conhecida. Sua abordagem em ensaios clinicos e publicacoes e pouco frequente. Foi realizada uma revisao da literatura, priorizando a epidemiologia, os fatores de risco, a patologia e os marcadores tumorais da doenca. Corresponde a 1% de todas as neoplasias da mama. Os fatores de risco incluem hiperestrogenismo, idade, ascendencia judaica, historia familiar e sindrome de Klinefelter. Cerca de 90% dos tumores sao ductais invasivos. De 80 a 90% dos casos apresentam receptores de estrogeno e progesterona positivos. O tratamento e semelhante ao do câncer de mama na mulher: cirurgia, hormonioterapia, quimioterapia e radioterapia sao usadas, seguindo os guidelines femininos. Os fatores prognosticos incluem tamanho tumoral, grau histologico e comprometimento linfonodal. O câncer de mama e similar em homens e mulheres; todavia, os casos masculinos apresentam particularidades imuno-histoquimicas, mas nao existem estudos suficientes para avaliar o impacto dessa caracteristica no prognostico e tratamento dessa neoplasia.(AU) Breast cancer in men is a little known disease. His approach in clinical trials and publications is uncommon. A literature review was conducted, focusing on the epidemiology, risk factors, pathology and tumor markers of this disease. Corresponds to 1% of all breast cancers. Risk factors include hiperestrogenism, age, Jewish ancestry, family history and Klinefelter syndrome. About 90% of tumors are invasive ductal. Exhibit estrogen and progesterone receptor positive in 80 to 90% of cases. Treatment is similar to breast cancer in women: surgery, hormone therapy, chemotherapy and radiotherapy are used, following the women?s guidelines. Prognostic factors include tumor size, histological grade and lymph node involvement. Breast cancer is similar in men and women; however, male cases had immunohistochemical features, but there aren?t sufficient data to evaluate the impact of this feature on the prognosis and treatment of this malignancy studies.(AU)
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