SUMMARYMetastatic tumors to the pituitary gland are an unusual complication typically seen in elderly patients with diffuse malignant disease. Breast and lung are the commonest sites of the primary tumor. Prognosis of patients with breast cancer metastasis is poor and depends on the primary neoplastic extension. We report a 54 year-old woman with breast cancer metastasis to the pituitary stalk first diagnosed because of visual disturbance with no other symptoms. Pituitary gland stalk metastasis is a very uncommon find and this case report includes a literature review. SUMÁRIOOs tumores hipofisários malignos são raros e geralmente se constituem de metástases de neoplasias disseminadas. Câncer de mama e pulmão são os sítios primários mais frequentes e o prognóstico depende do grau de comprometimento da doença. Este é o relato do caso de uma mulher de 54 anos que apresentou uma lesão tumoral restrita à haste hipofisária, que se revelou como metástase do câncer de mama previamente conhecido. O acometimento da haste hipofisária é muito raro, motivo pelo qual descrevemos o caso com a revisão da literatura específica.Arq Bras Endocrinol Metab. 2014;58(8):869-72
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