Mucinous Carcinoma of the Breast with Neuroendocrine Differentiation

摘要

>Mucinous carcinoma of the breast is a well-differentiated type of adenocarcinoma accounting for 2-5% of all breast cancers. Pure mucinous carcinoma of the breast has a favorable prognosis, usually seen in post-menopausal women. Neuroendocrine differentiation has been described in both in-situ and infiltrating breast cancers .Mucinous carcinomas of the breast appear to have the greatest association with neuroendocrine differentiation. Chromogranin A and synaptophysin are specific immunohistochemical markers of neuroendocrine differentiation. We report a case of mucinous carcinoma of the breast with neuroendocrine differentiation in a 67-year-old female who was treated surgically in a classical manner.