This is a ruptured ectatic submucosal artery.
The abnormal vessel is generally located in the stomach (1)
This lesion is an uncommon cause of a massive upper gastrointestinal bleed.
Dieulafoy lesions typically rebleed and require surgical treatment.
- Crotty B (1994). Haematemesis and melaena. Medicine International, 22(6), 231-5.
Last reviewed 01/2018