Arteriovenous malformations of the small intestine are a vanishingly r
are cause of hemorrhage from the gastrointestinal tract. To our knowle
dge, only one previous case has been reported. We describe a 41-year-o
ld man with massive gastrointestinal bleeding as the result of a jejun
al arteriovenous malformation. We discuss the histologic differentiati
on from angiodysplasia.