PMID- 15717751 OWN - NLM STAT- MEDLINE DCOM- 20050304 LR - 20180217 IS - 0001-5547 (Print) IS - 0001-5547 (Linking) VI - 49 IP - 1 DP - 2005 Jan-Feb TI - HER-2/neu evaluation by fluorescence in situ hybridization on destained cytologic smears from primary and metastatic breast cancer. PG - 27-30 AB - OBJECTIVE: To evaluate HER-2/neu amplification by fluorescence in situ hybridization (FISH) (HER-2/neu by FISH) on archival cytologic smears stained with May-Grunwald-Giemsa (MGG) stain. STUDY DESIGN: Cytologic specimens from 69 breast cancer lesions (48 primary and 21 metastatic), stained with MGG stain for routine diagnostic cytology, were destained and subjected to HER-2/neu by FISH. Fifteen of the 69 samples were also evaluated by FISH on paired fresh smears. RESULTS: HER-2/neu by FISH was successfully assayed in 25 of the 48 primary tumors and in 15 of the 21 metastatic lesions, corresponding to an overall feasibility of 58%. These cases had been archived between 1 month and 10 years prior to FISH analysis. Eight of the 25 primary and 5 of the 15 metastatic tumors were amplified. In 15 of the 40 evaluable cases, HER-2/neu was also assessed on the corresponding fresh smears: 8 tumors were amplified and 7 unamplified on both destained MGG and fresh smears. CONCLUSION: HER-2/neu can be detected by FISH on routinely MGG-stained cytologic slides. This approach allows HER-2/neu evaluation whenever histologic sections or fresh cytologic material are not available. In these cases, HER-2/neu assessment on destained cytologic smears plays a role in the selection of targeted therapy. FAU - Nizzoli, Rita AU - Nizzoli R AD - Department of Medical Oncology, University Hospital, Parma, Italy. rnizzoli@ao.pr.it FAU - Guazzi, Annamaria AU - Guazzi A FAU - Naldi, Nadia AU - Naldi N FAU - Fraciosi, Vittorio AU - Fraciosi V FAU - Bozzetti, Cecilia AU - Bozzetti C LA - eng PT - Journal Article PL - Switzerland TA - Acta Cytol JT - Acta cytologica JID - 0370307 SB - IM MH - Biopsy, Needle MH - Breast Neoplasms/*genetics/*pathology MH - Carcinoma/*genetics/*secondary MH - Female MH - *Genes, erbB-2 MH - Humans MH - *In Situ Hybridization, Fluorescence MH - Retrospective Studies MH - Staining and Labeling EDAT- 2005/02/19 09:00 MHDA- 2005/03/05 09:00 CRDT- 2005/02/19 09:00 PHST- 2005/02/19 09:00 [pubmed] PHST- 2005/03/05 09:00 [medline] PHST- 2005/02/19 09:00 [entrez] AID - 10.1159/000326091 [doi] PST - ppublish SO - Acta Cytol. 2005 Jan-Feb;49(1):27-30. doi: 10.1159/000326091.