Accurate HER2 assessment is essential for breast cancer classification and treatment selection. Because HER2-directed treatment depends on standardized interpretation of immunohistochemistry and in situ hybridization results, recognizing the current testing criteria is essential in clinical practice. Test your knowledge with this quick question on breast cancer pathology! (Scroll down to answer the question) ##References## Journal of clinical oncology ## ##Disclaimer## The content provided on Docplexus is intended for educational purposes only.

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