Most oncologists now are thinking of breast cancer as at least four diseases based on endocrine features - luminal A, luminal B, Her2 positive and the so called "triple negative" - breast cancers that express neither estrogen receptors, progesterone receptors nor Her2 receptors. These latter breast cancers, or "triple negative" breast cancers have a reputation (deservedly so) for being difficult to treat.
Yet many oncologists, like myself, have dozens of patients with "triple negative"...

