PMID- 27315045 OWN - NLM STAT- MEDLINE DCOM- 20170531 LR - 20220408 IS - 1934-6638 (Electronic) IS - 1934-662X (Linking) VI - 124 IP - 11 DP - 2016 Nov TI - Estrogen receptor, progesterone receptor, and human epidermal growth factor receptor 2 expression in breast cancer FNA cell blocks and paired histologic specimens: A large retrospective study. PG - 828-835 LID - 10.1002/cncy.21745 [doi] AB - BACKGROUND: Molecular analysis represents an increasingly important component of the pathologic examination of tumor specimens. Notably, the characterization of estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor 2 (HER2) expression in breast cancer specimens provides critical prognostic and predictive information. The objective of the current study was to compare the concordance of these markers as determined on fine-needle aspiration (FNA) cell blocks compared with tissue blocks prepared from surgical specimens. METHODS: A total of 134 cases of breast carcinoma were identified from 2002 through 2014 with both FNA cell blocks (fixed in 10% formalin) and corresponding available tissue blocks and ER, PR, and HER2 were characterized in both specimens. Negative and positive concordances were determined for ER and PR in cell blocks compared with tissue blocks, and for HER2 immunohistochemistry on cell blocks and tissue blocks versus the corresponding reference method, fluorescence in situ hybridization (FISH). RESULTS: Concordance for ER expression evaluated on a cell block compared with the corresponding tissue block was 96.2%. Concordance for PR expression was 77.5%. Overall agreement of HER2 FISH testing between cell blocks and tissue blocks was 96.7%. For both cell blocks and tissue blocks, HER2 expression by immunohistochemistry demonstrated >/=98% positive and negative concordance with the FISH reference method. CONCLUSIONS: ER, PR, and HER2 determination on FNA-acquired cell block (fixed exclusively in 10% formalin) showed excellent agreement for ER and HER2 and moderate agreement for PR with the corresponding tissue block. These findings support the equivalency of ER and HER2 evaluation performed on FNA cell blocks compared with surgical tissue blocks. Cancer Cytopathol 2016;124:828-35. (c) 2016 American Cancer Society. CI - (c) 2016 American Cancer Society. FAU - Vohra, Poonam AU - Vohra P AD - Department of Pathology, University of California at San Francisco, San Francisco, California. FAU - Buelow, Benjamin AU - Buelow B AD - Department of Pathology, University of California at San Francisco, San Francisco, California. FAU - Chen, Yunn-Yi AU - Chen YY AD - Department of Pathology, University of California at San Francisco, San Francisco, California. FAU - Serrano, Maria AU - Serrano M AD - Department of Pathology, Kaiser Permanente Medical Center, San Francisco. FAU - Vohra, Manjiv Singh AU - Vohra MS AD - ECC, Burlingame, California. FAU - Berry, Anna AU - Berry A AD - Cell Netix Pathology and Laboratories, Swedish Cancer Institute. FAU - Ljung, Britt-Marie AU - Ljung BM AD - Department of Pathology, University of California at San Francisco, San Francisco, California. LA - eng PT - Journal Article DEP - 20160617 PL - United States TA - Cancer Cytopathol JT - Cancer cytopathology JID - 101499453 RN - 0 (Biomarkers, Tumor) RN - 0 (Receptors, Estrogen) RN - 0 (Receptors, Progesterone) RN - EC 2.7.10.1 (Receptor, ErbB-2) SB - IM MH - *Biomarkers, Tumor MH - *Biopsy, Fine-Needle/methods MH - Breast Neoplasms/*diagnosis/*metabolism MH - Female MH - Gene Amplification MH - Gene Expression MH - Humans MH - *Immunohistochemistry/methods MH - In Situ Hybridization, Fluorescence MH - Prognosis MH - Receptor, ErbB-2/genetics/*metabolism MH - Receptors, Estrogen/genetics/*metabolism MH - Receptors, Progesterone/genetics/*metabolism MH - Reproducibility of Results MH - Sensitivity and Specificity OTO - NOTNLM OT - breast cancer OT - estrogen receptor (ER) OT - fluorescence in situ hybridization (FISH) OT - human epidermal growth factor receptor 2 (HER2) OT - immunohistochemistry OT - progesterone receptor (PR) EDAT- 2016/06/18 06:00 MHDA- 2017/06/01 06:00 CRDT- 2016/06/18 06:00 PHST- 2016/03/02 00:00 [received] PHST- 2016/03/24 00:00 [revised] PHST- 2016/04/19 00:00 [accepted] PHST- 2016/06/18 06:00 [pubmed] PHST- 2017/06/01 06:00 [medline] PHST- 2016/06/18 06:00 [entrez] AID - 10.1002/cncy.21745 [doi] PST - ppublish SO - Cancer Cytopathol. 2016 Nov;124(11):828-835. doi: 10.1002/cncy.21745. Epub 2016 Jun 17.