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Copyright ©The Author(s) 2016.
World J Gastroenterol. Dec 21, 2016; 22(47): 10316-10324
Published online Dec 21, 2016. doi: 10.3748/wjg.v22.i47.10316
Table 1 Vienna classification of Barrett’s oesophagus
1Negative for dysplasia
2Indefinite for dysplasia
3Low-grade dysplasia
4aHigh-grade dysplasia (including carcinoma in situ)
4bIntra-mucosal carcinoma (including suspicious for invasive cancer)
5Submucosal invasion by adenocarcinoma