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Medline ® Abstract for Reference 60

of 'Hormone receptors in breast cancer: Clinical utility and guideline recommendations to improve test accuracy'

Consensus recommendations on estrogen receptor testing in breast cancer by immunohistochemistry.
Yaziji H, Taylor CR, Goldstein NS, Dabbs DJ, Hammond EH, Hewlett B, Floyd AD, Barry TS, Martin AW, Badve S, Baehner F, Cartun RW, Eisen RN, Swanson PE, Hewitt SM, Vyberg M, Hicks DG, Members of the Standardization Ad-Hoc Consensus Committee
Appl Immunohistochem Mol Morphol. 2008;16(6):513.
Estrogen receptor (ER) status in breast cancer is currently the most important predictive biomarker that determines breast cancer prognosis after treatment with endocrine therapy. Although immunohistochemistry has been widely viewed as the gold standard methodology for ER testing in breast cancer, lack of standardized procedures, and lack of regulatory adherence to testing guidelines has resulted in high rates of "false-negative" results worldwide. Standardized testing is only possible after all aspects of ER testing--preanalytical, analytical, and postanalytical, have been closely controlled. A meeting of the "ad-hoc committee" of expert pathologists, technologists, and scientists, representing academic centers, reference laboratories, and various agencies, issued standardization testing recommendations, aimed at optimization of clinical ER testing environment, as a step toward improved standardized testing.
Vitro Molecular Laboratories, Miami, FL daggerKeck School of Medicine, University of Southern California, Los Angeles, USA. vitromolecular@mac.com