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Rare Triple-Negative Breast Cancer Is Not One Disease

In In The News by Barbara Jacoby

From: oncodaily.com Triple-negative breast cancer is usually defined by what it lacks: estrogen receptor, progesterone receptor, and HER2 overexpression or amplification. But that definition can conceal substantial biological diversity. A 2026 review published in npj Breast Cancer argues that rare histologic subtypes of triple-negative breast cancer should not automatically be approached as variants of the same disease. Instead, histology can …