Primary Neuroendocrine Breast Carcinoma (NEBC): A Case Report

Primary Neuroendocrine Breast Carcinoma (NEBC) is a rare tumor with an incident rate of <0.1% of Breast Cancers and <1% of all neuroendocrine neoplasms. This case report describes a 60-year-old female patient with NEBC of the left breast with no axillary lymphadenopathy or metastasis at initial presentation. The tumor cells were positive for neuroendocrine markers, a highKi67 proliferation index and negative for ER/PR and Her2neu. Breast neuroendocrine tumors are a rare heterogenous group of tumors and further studies are needed to understand its’ presentation and establish effective management strategies.