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©The Author(s) 2016.
World J Gastroenterol. Jul 14, 2016; 22(26): 5879-5887
Published online Jul 14, 2016. doi: 10.3748/wjg.v22.i26.5879
Published online Jul 14, 2016. doi: 10.3748/wjg.v22.i26.5879
Figure 1 Diagnostic algorithm for HER2 status evaluation in gastric and gastroesophageal adenocarcinomas.
Immunohistochemistry (IHC) represents the initial testing method. IHC score 0 and 1+ are considered negative while score 3+ cases are considered positive and do not need further testing. Fluorescence in situ hybridization testing is required only for equivocal IHC score 2+ cases. On the basis of HER2 (red spots): CEP 17 (green spots) ratio (< 2 vs≥ 2) patients are eligible or not to anti-HER2 therapy.
- Citation: Grillo F, Fassan M, Sarocchi F, Fiocca R, Mastracci L. HER2 heterogeneity in gastric/gastroesophageal cancers: From benchside to practice. World J Gastroenterol 2016; 22(26): 5879-5887
- URL: https://www.wjgnet.com/1007-9327/full/v22/i26/5879.htm
- DOI: https://dx.doi.org/10.3748/wjg.v22.i26.5879