PMID- 12619096 OWN - NLM STAT- MEDLINE DCOM- 20030924 LR - 20191210 IS - 8755-1039 (Print) IS - 1097-0339 (Linking) VI - 28 IP - 3 DP - 2003 Mar TI - Immunocytochemical evaluation of HER-2/neu on fine-needle aspirates from primary breast carcinomas. PG - 142-6 AB - Detection of HER-2/neu alterations is increasingly used in breast cancer patients for therapeutic purposes. This study examines the reliability of HER-2/neu immunocytochemical assessment on 66 cytospin smears obtained by fine-needle aspiration biopsy from breast cancer patients. Results were compared with those obtained by both fluorescence in situ hybridization (FISH) on fine-needle aspirate (FNA) and immunohistochemistry (IHC) on matched histologic section. Concordance between immunocytochemistry (ICC) and FISH was 78% and between ICC and IHC was 84%. Discordance mainly concerned seven unamplified cases that resulted positive by ICC and four cases scored negative by IHC but positive by ICC. Simultaneous assessment of HER-2/neu by ICC, IHC, and FISH was available in 24 cases; the concordance was 75%. In this study, the false positivity of immunocytochemical technique represents the major criticism. In our experience, FISH remains the most objective and powerful technique for HER-2/neu assessment on breast cancer FNAs. CI - Copyright 2003 Wiley-Liss, Inc. FAU - Nizzoli, Rita AU - Nizzoli R AD - Divisione di Oncologia Medica, Ospedale di Parma, Parma, Italy. rnizzoli@ao.pr.it FAU - Bozzetti, Cecilia AU - Bozzetti C FAU - Crafa, Pellegrino AU - Crafa P FAU - Naldi, Nadia AU - Naldi N FAU - Guazzi, Annamaria AU - Guazzi A FAU - Di Blasio, Beatrice AU - Di Blasio B FAU - Camisa, Roberta AU - Camisa R FAU - Cascinu, Stefano AU - Cascinu S LA - eng PT - Comparative Study PT - Evaluation Study PT - Journal Article PL - United States TA - Diagn Cytopathol JT - Diagnostic cytopathology JID - 8506895 RN - 0 (RNA, Messenger) RN - EC 2.7.10.1 (Receptor, ErbB-2) SB - IM MH - Adenocarcinoma/*genetics/metabolism/pathology MH - Biopsy, Needle/*methods MH - Breast Neoplasms/*genetics/metabolism/pathology MH - False Positive Reactions MH - Female MH - Humans MH - Immunoenzyme Techniques/*methods MH - In Situ Hybridization, Fluorescence MH - RNA, Messenger/metabolism MH - Receptor, ErbB-2 MH - Reproducibility of Results EDAT- 2003/03/06 04:00 MHDA- 2003/09/25 05:00 CRDT- 2003/03/06 04:00 PHST- 2003/03/06 04:00 [pubmed] PHST- 2003/09/25 05:00 [medline] PHST- 2003/03/06 04:00 [entrez] AID - 10.1002/dc.10257 [doi] PST - ppublish SO - Diagn Cytopathol. 2003 Mar;28(3):142-6. doi: 10.1002/dc.10257.