Atlas of Gastroenterological Endoscopy
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Punctuate angiodysplastic lesion in the ascending colon
Angiodysplasia This part of the colon is especially prone to angiodysplastic lesions. They present as small, punctuate and sometimes elevated lesions. They occur either singular or in groups with variable edges, sometimes clear cut sometimes cloudy. The incidence rises with age (3-5% of people above 60 years). Angiodysplastic lesions can cause acute, recurrent or chronic enteral hemorrhage (approx. 3% in rectal hemorrhage). In young age bleeding, angiodysplastic lesions of the terminal ileum do occur rarely. Angiodysplastic lesions are acquired malformations mostly of unknown origin. Relations to aortic stenosis (Heyde syndrome), arterial occlusive disease and also to v. Willebrandt syndrome are put forward by some authors, but denied by others
Cecal angiodysplasia
Cecal angiodysplasia Cecal angiodysplasia
There are tortuous vessel in the submucosal layer. This can be seen up to the lower ascending colon. The magnification on the right underlines the totuosity. Histology reveals an angiodysplasia.
Angiodysplasia in the transvers colon
Angiodysplasia in the transvers colon Similar picture from the transverse colon. The lesion is a little prominent. The vessels at the edges are clearly visible.