Dieulafoy Lesion / Caliber Persistent Artery
Definition
- Presence in the mucosa of an abnormally large artery for that level
Alternate/Historical Names
- Cirsoid aneurysm
Diagnostic Criteria
- Large artery present at the level of muscularis mucosae or higher
- Abnormally large for that level (0.68-2.42 mm)
- Normal size for submucosa is (0.7-1.29 mm)
- Normal size for muscularis mucosae is ≤0.13 mm
- Normal in structure and size for submucosa
- Accompanied by vein of similar caliber
- Significant risk of ulceration with significant bleeding
- Ulcer is generally very small (2-10 mm)
- Localized precisely to area where artery and vein reach the mucosa
- Both artery and vein are perforated
- Vessels may show inflammation and necrosis if perforated
- Primarily gastric but has been reported at other sites
- Mean age 50’s
- Range 16-91
Robert V Rouse MD
Department of Pathology
Stanford University School of Medicine
Stanford CA 94305-5342
Original posting : November 11, 2009
