Colonoscopy
Examining the whole large bowel with a flexible camera; polyps found on the way are removed (polypectomy), which prevents most bowel cancers.
The only screening test that both detects and prevents cancer: removing adenomas cuts colorectal cancer incidence and mortality by half or more (National Polyp Study, NordICC). It is the confirmatory test after a positive stool test (FIT) or blood test, and the surveillance tool after polyp removal or resection. Quality is measured by adenoma detection rate and caecal intubation; AI polyp detection raises the former. Bowel preparation and sedation are the main deterrents to uptake.
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not linked directly; found by shared links- TermBarrett's oesophagus (Barrett's metaplasia)
Shares EMR and ESD (endoscopic mucosal resection, endoscopic submucosal dissection), Dysplasia (pre-cancerous change), Endoscopic resection (EMR / ESD).
- TermLymphovascular invasion (LVI)
Shares EMR and ESD (endoscopic mucosal resection, endoscopic submucosal dissection), Endoscopic resection (EMR / ESD).
- PathwayField cancerisation
- TechnologyThermal ablation (RFA, microwave, cryo)