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The revised Vienna classification of gastrointestinal epithelial neoplasia
| Category | Diagnosis |
|---|---|
| 1 | Negative for neoplasia |
| 2 | Indefinite for neoplasia |
| 3 | Mucosal low-grade neoplasia |
| Low-grade adenoma | |
| Low-grade dysplasia | |
| 4 | Mucosal high-grade neoplasia |
| 4.1 | High-grade adenoma/dysplasia |
| 4.2 | Noninvasive carcinoma (carcinoma in situ) |
| 4.3 | Suspicious for invasive carcinoma |
| 4.4 | Intramucosal carcinoma |
| 5 | Submucosal invasion by carcinoma |
