PMID- 15030120 OWN - NLM STAT- MEDLINE DCOM- 20040707 LR - 20220716 IS - 0043-5325 (Print) IS - 0043-5325 (Linking) VI - 116 IP - 1-2 DP - 2004 Jan 31 TI - Prognostic markers in breast cancer: the reliability of HER2/neu status in core needle biopsy of 325 patients with primary breast cancer. PG - 26-31 AB - INTRODUCTION: The assessment of HER2/neu overexpression in tissue provides information about one of the most relevant prognostic and predictive markers in breast cancer: overexpression of HER2/neu is associated with worse prognosis in primary breast cancer. Since core needle biopsy is increasingly used for the diagnosis of breast cancer, the purpose of this study was to assess the reliability of HER2/neu evaluation using this technique in patients with primary breast cancer. PATIENTS AND METHODS: We investigated the accuracy of immunohistochemical assessment of HER2/neu in core needle biopsies compared with surgically obtained specimens in 325 patients with primary breast cancer. In patients strongly positive for HER2/neu, additional fluorescence in situ hybridization (FISH) analysis of needle biopsies was performed. RESULTS: Using immunohistochemistry alone, accuracy of HER2/neu assessment in core biopsies in relation to surgically removed specimens was 92% and increased to 96% with additional FISH analysis (weighted Kappa coefficient: 0.86). DISCUSSION: As proven with this large series of patients, the assessment of HER2/neu status by core needle biopsy in breast cancer is accurate. Notwithstanding, in order to minimize the number of false-positive results, strongly positive core needle biopsies identified using immunohistochemistry should be confirmed by FISH analysis. FAU - Taucher, Susanne AU - Taucher S AD - Department of Surgery, Vienna University Medical School, Vienna, Austria. susanne.taucher@univie.ac.at FAU - Rudas, Margaretha AU - Rudas M FAU - Mader, Robert M AU - Mader RM FAU - Gnant, Michael AU - Gnant M FAU - Dubsky, Peter AU - Dubsky P FAU - Roka, Sebastian AU - Roka S FAU - Bachleitner, Thomas AU - Bachleitner T FAU - Kandioler, Daniela AU - Kandioler D FAU - Steger, Gunther AU - Steger G FAU - Mittlbock, Martina AU - Mittlbock M FAU - Jakesz, Raimund AU - Jakesz R LA - eng PT - Comparative Study PT - Journal Article PL - Austria TA - Wien Klin Wochenschr JT - Wiener klinische Wochenschrift JID - 21620870R RN - 0 (Antibodies, Monoclonal) RN - 0 (Antibodies, Monoclonal, Humanized) RN - 0 (Antineoplastic Agents) RN - 0 (Genetic Markers) RN - 0 (Reagent Kits, Diagnostic) RN - EC 2.7.10.1 (Receptor, ErbB-2) RN - P188ANX8CK (Trastuzumab) SB - IM CIN - Wien Klin Wochenschr. 2004 Jan 31;116(1-2):3-5. PMID: 15030116 MH - Adult MH - Aged MH - Aged, 80 and over MH - Antibodies, Monoclonal/therapeutic use MH - Antibodies, Monoclonal, Humanized MH - Antineoplastic Agents/therapeutic use MH - Biopsy, Needle MH - Breast/pathology MH - Breast Neoplasms/drug therapy/*genetics/pathology/surgery MH - Carcinoma, Ductal/drug therapy/*genetics/pathology/surgery MH - Carcinoma, Lobular/drug therapy/*genetics/pathology/surgery MH - Chromosomes, Human, Pair 17 MH - Combined Modality Therapy MH - Female MH - Genetic Markers/*genetics MH - Humans MH - In Situ Hybridization, Fluorescence MH - Middle Aged MH - Neoadjuvant Therapy MH - Predictive Value of Tests MH - Prognosis MH - Reagent Kits, Diagnostic MH - Receptor, ErbB-2/*genetics MH - Trastuzumab EDAT- 2004/03/20 05:00 MHDA- 2004/07/09 05:00 CRDT- 2004/03/20 05:00 PHST- 2004/03/20 05:00 [pubmed] PHST- 2004/07/09 05:00 [medline] PHST- 2004/03/20 05:00 [entrez] AID - 10.1007/BF03040420 [doi] PST - ppublish SO - Wien Klin Wochenschr. 2004 Jan 31;116(1-2):26-31. doi: 10.1007/BF03040420.