Angiodysplasia

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Angiodysplasia
Diagnosis in short

Compatible with angiodysplasia. H&E stain.

LM dilated vessels in mucosa and submucosa
LM DDx prominent vessels
Clinical history older individuals
Signs bleeding from rectum
Endoscopy red lesion - typically right colon or cecum
Clin. DDx Other causes of lower GI bleed

Angiodysplasia is a benign pathology of the large bowel.

General

Epidemiology:

  • Older people.

Etiology:

  • Thought to be caused by the higher wall tension of cecum (due to larger diameter) and result from (intermittent) venous occlusion/focal dilation of vessels.[2]

Gross

  • Cecum - classic location.

Note:

Images

Microscopic

Features:[3]

DDx:

Images

See also

References

  1. Hui YT, Lam WM, Fong NM, Yuen PK, Lam JT (August 2009). "Heyde's syndrome: diagnosis and management by the novel single-balloon enteroscopy". Hong Kong Med J 15 (4): 301–3. PMID 19652242. http://www.hkmj.org/abstracts/v15n4/301.htm.
  2. Cotran, Ramzi S.; Kumar, Vinay; Fausto, Nelson; Nelso Fausto; Robbins, Stanley L.; Abbas, Abul K. (2005). Robbins and Cotran pathologic basis of disease (7th ed.). St. Louis, Mo: Elsevier Saunders. pp. 854. ISBN 0-7216-0187-1.
  3. 3.0 3.1 Hemingway, AP. (Apr 1988). "Angiodysplasia: current concepts.". Postgrad Med J 64 (750): 259-63. PMID 3054852.