Dieulafoy lesion

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Dieulafoy lesion, also known as calibre persistent artery, is a rare potentially deadly cause of gastrointestinal bleeding.[1] It is usually a clinical diagnosis.

General

  • Rare.
  • Cause of GI bleeding - may be fatal.[1]
  • Pathogenesis not well understood.

Gross

  • Typically in the stomach (2/3 of cases) - located on lesser curvature.
    • May be in the duodenum or colon.

Microscopic

Features:[1]

  • "Large" histologically normal submucosal artery.
    • ~1-3 millimetres.

See also

References