| International Harmonization of Rat Nomenclature |
| Recommendation | sources | ||
| WHO/IARC/RITA | NACAD | STP | |
| hyperplasia (H) | hyperplasia (H) | hyperplasia (H) | hyperplasia |
| adenoma (B) | adenoma (B) | adenoma (B) | adenoma |
| carcinoma (M) | adenocarcinoma (M) | carcinoma (M) | carcinoma |
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