Gastrointestinal Vascular Malformations

There are a variety of congenital or acquired syndromes related to changes in blood vessels in the mucosa or submucosa of the GIT. These vessels can cause recurrent bleeding, but they are rarely massive. The diagnosis is made by endoscopy and angiography only in individual cases. Treatment is usually by endoscopic hemostasis, sometimes by angiographic embolization or surgical resection.

(See also Overview of gastrointestinal bleeding.)

There are a variety of congenital or acquired syndromes related to changes in blood vessels in the mucosa or submucosa of the GIT. These vessels can cause recurrent bleeding, but they are rarely massive. The diagnosis is made by endoscopy and angiography only in individual cases. Treatment is usually by endoscopic hemostasis, sometimes by angiographic embolization or surgical resection. (See also Overview of gastrointestinal bleeding.) Vascular ectasias (angiodysplasias, arteriovenous malformations) are enlarged, tortuous vessels that typically develop in the cecum and ascending colon. They mainly occur in individuals> 60 years on and represent the most common cause of bleeding in the lower GIT in this age group. They are regarded as the cause degenerative changes and do not occur in conjunction with other vascular anomalies. Most patients have 2 or 3 lesions, which are typically 0.5-1 cm wide, bright red, flat or slightly raised and changes are covered by a thin layer of epithelium. Capillaries also occur in conjunction with a number of systemic diseases (eg. B. renal failure, cirrhosis, CREST syndrome [calcinosis cutis, Raynaud’s phenomenon, esophageal dysmotility, sclerodactyly, telangiectasias, pathophysiology) and after irradiation of the intestine on. Angiodysplasia figure provided by David M. Martin, M.D. var model = {thumbnailUrl: ‘/-/media/manual/professional/images/angiodysplasia_high_de.jpg?la=de&thn=0&mw=350’ imageUrl: ‘/-/media/manual/professional/images/angiodysplasia_high_de.jpg?la = en & thn = 0 ‘, title:’ angiodysplasia ‘description:’ u003Ca id = “v38395171 ” class = “”anchor “” u003e u003c / a u003e u003cdiv class = “”para “” u003e u003cp u003eDieses photo shows vascular ectasia in the intestinal wall u003c / p u003e u003c / div u003e. ‘credits’ image provided by David M. Martin

Health Life Media Team

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