Angiodysplasia classification: Difference between revisions

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{{Angiodysplasia}}
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==Overview==
[[Angiodysplasia]] can be classified in multiple ways. The most often used classifies it according to findings on [[endoscopy]].


==Classification==
==Classification==
One system of classification is based on location, size, and number of angiodysplasias. <ref name="pmid9852467">{{cite journal| author=Schmit A, Van Gossum A| title=Proposal for an endoscopic classification of digestive angiodysplasias for therapeutic trials. The European Club of Enteroscopy. | journal=Gastrointest Endosc | year= 1998 | volume= 48 | issue= 6 | pages= 659 | pmid=9852467 | doi=10.1016/s0016-5107(98)70080-x | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=9852467  }} </ref>
{| class="wikitable"
|+Classification of gastrointestinal angiodysplasia
!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
|
|
|-
| colspan="3" |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. <ref name="pmid18155439">{{cite journal| author=Yano T, Yamamoto H, Sunada K, Miyata T, Iwamoto M, Hayashi Y | display-authors=etal| title=Endoscopic classification of vascular lesions of the small intestine (with videos). | journal=Gastrointest Endosc | year= 2008 | volume= 67 | issue= 1 | pages= 169-72 | pmid=18155439 | doi=10.1016/j.gie.2007.08.005 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=18155439  }} </ref>


Type 1: Angioectasias:
There are multiple systems of classification of angiodysplasia. One system of classification is based on location, size, and number of angiodysplastic lesions. <ref name="pmid9852467">{{cite journal| author=Schmit A, Van Gossum A| title=Proposal for an endoscopic classification of digestive angiodysplasias for therapeutic trials. The European Club of Enteroscopy. | journal=Gastrointest Endosc | year= 1998 | volume= 48 | issue= 6 | pages= 659 | pmid=9852467 | doi=10.1016/s0016-5107(98)70080-x | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=9852467  }} </ref> Another system uses [[endoscopic]] findings to classify angiodysplasia into: <ref name="pmid18155439">{{cite journal| author=Yano T, Yamamoto H, Sunada K, Miyata T, Iwamoto M, Hayashi Y | display-authors=etal| title=Endoscopic classification of vascular lesions of the small intestine (with videos). | journal=Gastrointest Endosc | year= 2008 | volume= 67 | issue= 1 | pages= 169-72 | pmid=18155439 | doi=10.1016/j.gie.2007.08.005 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=18155439  }} </ref>


Type 1 a - punctulate erythema (< 1 mm), with or without oozing
Type 1: Angioectasias<br>


Type 1 b - patchy erythema (a few mm), with or without oozing
Type 2: Dieulafoy's lesions<br>


Type 2: Dieulafoy's lesions:
Type 3: Pulsatile red protrusion, with surrounding venous dilatation<br>


Type 2 a - punctulate lesions (< 1 mm), with pulsatile bleeding
Type 4: Other lesions not classified into any of the above categories.<br />
 
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.
 
<br />


==References==
==References==
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[[Category:Gastroenterology]]
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Latest revision as of 21:17, 25 April 2022

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Nikita Singh, M.B.B.S.[2]; José Eduardo Riceto Loyola Junior, M.D.[3]

Overview

Angiodysplasia can be classified in multiple ways. The most often used classifies it according to findings on endoscopy.

Classification

There are multiple systems of classification of angiodysplasia. One system of classification is based on location, size, and number of angiodysplastic lesions. [1] Another system uses endoscopic findings to classify angiodysplasia into: [2]

Type 1: Angioectasias

Type 2: Dieulafoy's lesions

Type 3: Pulsatile red protrusion, with surrounding venous dilatation

Type 4: Other lesions not classified into any of the above categories.

References

  1. 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.
  2. 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.

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