Mucinous Carcinoma of the Breast with Neuroendocrine Differentiation

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.   how to cite this article: varadharajan e, priya s, prakash g, mugundan a, easwaramurthi p. mucinous carcinoma of the breast with neuroendocrine differentiation. iran j pathol. 2015;10(3):231-6.