PMID- 23270898 OWN - NLM STAT- MEDLINE DCOM- 20130219 LR - 20141120 IS - 1943-7722 (Electronic) IS - 0002-9173 (Linking) VI - 139 IP - 1 DP - 2013 Jan TI - Is it necessary to evaluate nuclei in HER2 FISH evaluation? PG - 47-54 LID - 10.1309/AJCPPXLYJVFGOV8I [doi] AB - A new method that simplifies the evaluation of the traditional HER2 fluorescence in situ hybridization (FISH) evaluation in breast cancer was proposed. HER2 status was evaluated in digital images (DIs) captured from 423 invasive breast cancer stained sections. All centromeric/CEP17 and HER2 gene signals obtained from separated stacked DIs were manually counted on the screen. The global ratios were compared with the traditional FISH evaluation and the immunohistochemical status. The 2 FISH scores were convergent in 96.93% of cases, showing an "almost perfect" agreement with a weighted k of 0.956 (95% confidence interval, 0.928-0.985). The new method evaluates at least 3 times more nuclei than traditional methods and also has an almost perfect agreement with the immunohistochemical scores. The proposed enhanced method substantially improves HER2 FISH assessment in breast cancer biopsy specimens because the evaluation of HER2/CEP17 copy numbers is more representative, easier, and faster than the conventional method. FAU - Lopez, Carlos AU - Lopez C AD - Molecular Biology and Research Section, Hospital de Tortosa Verge de la Cinta, IISPV, URV, Tortosa, Spain. clopezp.ebre.ics@gencat.cat FAU - Tomas, Barbara AU - Tomas B FAU - Korzynska, Anna AU - Korzynska A FAU - Bosch, Ramon AU - Bosch R FAU - Salvado, Maria T AU - Salvado MT FAU - Llobera, Montserrat AU - Llobera M FAU - Garcia-Rojo, Marcial AU - Garcia-Rojo M FAU - Alvaro, Tomas AU - Alvaro T FAU - Jaen, Joaquin AU - Jaen J FAU - Lejeune, Marylene AU - Lejeune M LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Am J Clin Pathol JT - American journal of clinical pathology JID - 0370470 RN - EC 2.7.10.1 (ERBB2 protein, human) RN - EC 2.7.10.1 (Receptor, ErbB-2) SB - IM MH - Biopsy MH - Breast Neoplasms/diagnosis/*genetics MH - Carcinoma, Ductal, Breast/diagnosis/*genetics MH - Cell Nucleus/*genetics/pathology MH - Centromere/genetics/pathology MH - Chromosomes, Human, Pair 17 MH - Female MH - Humans MH - Image Processing, Computer-Assisted MH - *In Situ Hybridization, Fluorescence MH - Observer Variation MH - Receptor, ErbB-2/*genetics MH - Reproducibility of Results EDAT- 2012/12/29 06:00 MHDA- 2013/02/21 06:00 CRDT- 2012/12/29 06:00 PHST- 2012/12/29 06:00 [entrez] PHST- 2012/12/29 06:00 [pubmed] PHST- 2013/02/21 06:00 [medline] AID - 139/1/47 [pii] AID - 10.1309/AJCPPXLYJVFGOV8I [doi] PST - ppublish SO - Am J Clin Pathol. 2013 Jan;139(1):47-54. doi: 10.1309/AJCPPXLYJVFGOV8I.