HER2 positive mucinous carcinoma of breast with micropapillary features: Report of a case and review of literature

Abstract

Mucinous carcinoma of breast is a rare variant of invasive breast carcinoma and usually affects older females and is associated with good prognosis. Human epidermal growth factor receptor 2 (HER2) positivity in these tumors is rare. We describe here a case of advanced stage HER2 + mucinous carcinoma with micropapillary features who underwent complete remission on treatment with radiation therapy and hormonal therapy and presented after eight years with invasive duct carcinoma in the contralateral breast.

Keywords

• Breast
• HER 2
• Mucinous carcinoma
• Micropapillary