| ACG | American College of Gastroenterology |
| AE | Adverse event |
| AGA | American Gastroenterological Association |
| AI | Artificial intelligence |
| APC | Adenomatous polyposis coli (gene) |
| AXIN2 | Axis inhibition protein 2 (gene) |
| BLI | Blue light imaging |
| BRAF | v-RAF murine sarcoma viral oncogene homolog B1 (gene) |
| BSG | British Society of Gastroenterology |
| CE | Chromoendoscopy |
| CD | Crohn’s disease |
| CIN | Chromosomal instability |
| CIMP | CpG island methylator phenotype |
| CIMP-H | CpG island methylator phenotype–high |
| CIMP-L | CpG island methylator phenotype–low |
| CRC | Colorectal cancer |
| CRN | Colorectal neoplasia |
| DCE | Dye-based chromoendoscopy |
| ECCO | European Crohn’s and Colitis Organisation |
| EMR | Endoscopic mucosal resection |
| ER | Endoscopic resection |
| ESGE | European Society of Gastrointestinal Endoscopy |
| ESD | Endoscopic submucosal dissection |
| FBXW7 | F-box/WD repeat-containing protein 7 (gene) |
| HD-WLE | High-definition white-light endoscopy |
| HGD | High-grade dysplasia |
| HP | Hyperplastic polyp |
| HR-CAN | High-risk colorectal advanced neoplasia |
| IBD | Inflammatory bowel disease |
| IBD-CRC | IBD-associated colorectal cancer |
| LGD | Low-grade dysplasia |
| LST-NG | Laterally spreading tumor—non-granular type |
| MCC | Mutated in colorectal cancers (gene) |
| MDT | Multidisciplinary team |
| MLH1 | MutL homolog 1 (gene) |
| Mo | months |
| MSI-H | Microsatellite instability–high |
| MSS | Microsatellite stable |
| NBI | Narrow band imaging |
| NGS | Next-generation sequencing |
| NOS | Not otherwise specified |
| OS | Overall survival |
| PSC | Primary sclerosing cholangitis |
| Pts | patients |
| QA | Quality assurance |
| R0 | Complete (negative-margin) resection |
| R1 | Incomplete (positive-margin) resection |
| RNF43 | Ring Finger Protein 43 (gene) |
| SCENIC | Surveillance for Colorectal Endoscopic Neoplasia Detection and Management in IBD Consensus |
| SEC | Serrated epithelial change |
| SD-NOS | Serrated dysplasia—not otherwise specified |
| sCRC | Sporadic colorectal cancer |
| SMOC1 | SPARC-related modular calcium-binding protein 1 (gene) |
| SP | Serrated polyp |
| SPU | Serrated polyp, unclassified |
| SSA/P | Sessile serrated adenoma/polyp (historical term, mapped as SSL) |
| SSP | Sessile serrated polyp (historical term, mapped as SSL) |
| SSL | Sessile serrated lesion |
| SSL-D | Sessile serrated lesion with dysplasia |
| TSA | Traditional serrated adenoma |
| UC | Ulcerative colitis |
| U-EMR | Underwater endoscopic mucosal resection |
| U-ESD | Underwater endoscopic submucosal dissection |
| VCE | Virtual chromoendoscopy |
| WHO | World Health Organization |
| WNT | Wingless/integrated signaling pathway |
| ZNRF3 | Zinc and ring finger 3 (gene) |