Welcome to the new, updated HER2Know
We have expanded our resource library so you can now explore content on HER2 in tumors beyond breast.
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*Membrane staining that is incomplete and is faint/barely perceptible and in ≤10% of tumor cells.1
HER2, human epidermal growth factor receptor 2; IHC, immunohistochemistry.
; NST, no special type.
1. Wolff AC, et al. Arch Pathol Lab Med 2023;147(9):993–1000.