Haggitt Level (Malignant Polyp Invasion)
Haggitt Level (Malignant Polyp Invasion) - a deterministic tool in Sophie Well's Clinical Scoring & Risk group.
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What this is
Haggitt Level (Malignant Polyp Invasion) is one of 230 deterministic tools in Sophie Well's Clinical Scoring & Risk group. Haggitt Level (Malignant Polyp Invasion) - a deterministic tool in Sophie Well's Clinical Scoring & Risk group.
When to use it
Use this tool when you need a quick, citable reference. Every calculation runs entirely in your browser - no inputs leave your device, no account is required, no AI is involved. The site enforces a strict Content Security Policy and ships no analytics or third-party CDN.
References
Haggitt RC, Glotzbach RE, Soffer EE, Wruble LD. Prognostic factors in colorectal carcinomas arising in adenomas: implications for lesions removed by endoscopic polypectomy. Gastroenterology. 1985;89(2):328-336. Read the source ↗
Worked example: Haggitt level 4: invasion below the stalk into the bowel-wall submucosa; higher metastasis risk. All sessile invasive polyps are level 4.
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