Stomach
Other nonneoplastic
Arteriovenous malformation
Author: Elliot Weisenberg, M.D.
Last author update: 1 July 2012
Last staff update: 13 December 2023
Copyright: 2003-2025, PathologyOutlines.com, Inc.
PubMed Search: Stomach arteriovenous malformation
Table of Contents
Definition / general | Terminology | Case reports | Microscopic (histologic) description | Microscopic (histologic) imagesCite this page: Weisenberg E. Arteriovenous malformation. PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/stomachAVM.html. Accessed January 4th, 2025.
Definition / general
- Arteriovenous malformation is rare
- Dieulafoy lesion
- Usually single, submucosal, high on lesser curvature (Am J Surg Pathol 1982;6:83)
- Complications: perforation, hemorrhage
Terminology
- Dieulafoy lesion is also called caliber persistent artery, Dieulafoy disease
Case reports
- 74 year old man with amyloid deposition in a gastric arteriovenous malformation (Arch Pathol Lab Med 1986;110:69)
Microscopic (histologic) description
- Dieulafoy lesion
- Large tortuous vessel with small defect in overlying mucosa
- May have amyloid (Ann Pathol 2004;24:256)
Microscopic (histologic) images
Contributed by Raul Gonzalez, M.D.
Gastric arteriovenous malformation
