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.


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


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



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

See also


  1. 1.0 1.1 1.2 Baxter, M.; Aly, EH. (Oct 2010). "Dieulafoy's lesion: current trends in diagnosis and management.". Ann R Coll Surg Engl 92 (7): 548-54. doi:10.1308/003588410X12699663905311. PMC 3229341. PMID 20883603. //www.ncbi.nlm.nih.gov/pmc/articles/PMC3229341/.