hormone receptor-negative/HER2-positive breast cancer

A HER2 positive breast cancer characterized by excess HER2 (ERBB2) protein and the absence of both the estrogen and progesterone receptors.

Also known as: HER2+/HR- breast cancer; HER2-positive/HR-negative breast cancer; HER2-positive/hormone receptor-negative breast cancer; HR-/HER2+ breast cancer; HR-negative/HER2-positive breast cancer