Angiodysplasia classification: Difference between revisions
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Revision as of 20:17, 3 September 2021
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Angiodysplasia Microchapters |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Nikita Singh, M.D.[2]
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Classification
One system of classification is based on location, size, and number of angiodysplasias. [1]
| Location | Size | Number of lesions |
|---|---|---|
| Gastric | Minute (<2 mm in diameter) | Unique (n = 1) |
| Duodenal | Intermediate (2 to 5 mm) | Multiple (n = 2 to 10) |
| Jejunal | Large (>5 mm) | Diffuse (n > 10) |
| Colonic | ||
| For example, "D-S2-N3" signifies multiple angiodysplasias of intermediate size in the duodenum. | ||
Another system of classification uses endoscopic techniques to classify angiodysplasia depending on size, bleeding and surrounding venous dilatation. [2]
Type 1: Angioectasias:
Type 1 a - punctulate erythema (< 1 mm), with or without oozing
Type 1 b - patchy erythema (a few mm), with or without oozing
Type 2: Dieulafoy's lesions:
Type 2 a - punctulate lesions (< 1 mm), with pulsatile bleeding
Type 2b - pulsatile red protrusion, without surrounding venous dilatation
Type 3 - pulsatile red protrusion, with surrounding venous dilatation
Type 4 - other lesions not classified into any of the above categories.
References
- ↑ Schmit A, Van Gossum A (1998). "Proposal for an endoscopic classification of digestive angiodysplasias for therapeutic trials. The European Club of Enteroscopy". Gastrointest Endosc. 48 (6): 659. doi:10.1016/s0016-5107(98)70080-x. PMID 9852467.
- ↑ Yano T, Yamamoto H, Sunada K, Miyata T, Iwamoto M, Hayashi Y; et al. (2008). "Endoscopic classification of vascular lesions of the small intestine (with videos)". Gastrointest Endosc. 67 (1): 169–72. doi:10.1016/j.gie.2007.08.005. PMID 18155439.