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Recommendations for human epidermal growth factor receptor 2 testing in breast cancer: American Society of Clinical Oncology/College of American Pathologists clinical practice guideline update.
TLDR
The Update Committee recommends that HER2 status (HER2 negative or positive) be determined in all patients with invasive breast cancer on the basis of one or more HER2 test results (negative, equivocal, or positive).
American Society of Clinical Oncology/College of American Pathologists guideline recommendations for human epidermal growth factor receptor 2 testing in breast cancer.
TLDR
A testing algorithm that relies on accurate, reproducible assay performance, including newly available types of brightfield ISH, is proposed and strongly recommends validation of laboratory assay or modifications, use of standardized operating procedures, and compliance with new testing criteria to be monitored.
Trastuzumab after adjuvant chemotherapy in HER2-positive breast cancer.
TLDR
One year of treatment with trastuzumab after adjuvant chemotherapy significantly improves disease-free survival among women with HER2-positive breast cancer.
American Society of Clinical Oncology/College of American Pathologists guideline recommendations for human epidermal growth factor receptor 2 testing in breast cancer.
TLDR
A testing algorithm that relies on accurate, reproducible assay performance, including newly available types of brightfield ISH, is proposed and strongly recommends validation of laboratory assay or modifications, use of standardized operating procedures, and compliance with new testing criteria are recommended.
American Society of Clinical Oncology/College Of American Pathologists guideline recommendations for immunohistochemical testing of estrogen and progesterone receptors in breast cancer.
TLDR
An international Expert Panel that conducted a systematic review and evaluation of the literature and developed recommendations for optimal IHC ER/PgR testing performance recommended that ER and PgR status be determined on all invasive breast cancers and breast cancer recurrences.
Assessment of Ki67 in breast cancer: recommendations from the International Ki67 in Breast Cancer working group.
TLDR
Comprehensive recommendations on preanalytical and analytical assessment, and interpretation and scoring of Ki67 were formulated based on current evidence, geared toward achieving a harmonized methodology, create greater between-laboratory and between-study comparability, and allow earlier valid applications of this marker in clinical practice.
Recommendations for human epidermal growth factor receptor 2 testing in breast cancer: American Society of Clinical Oncology/College of American Pathologists clinical practice guideline update.
TLDR
The Update Committee recommends that HER2 status (HER2 negative or positive) be determined in all patients with invasive breast cancer on the basis of one or more HER2 test results (negative, equivocal, or positive).
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