Arteriovenous malformation of the jejunum in a child.

Arteriovenous malformation of the intestine is an uncommon cause of gastrointestinal hemorrhage, and the diagnosis can be made only by selective mesenteric arteriography to demonstrate the characteristic appearance. This is a case report of a 16-year-old boy with arteriovenous malformation of the jejunum causing massive rectal bleeding. We advocate the use of selective visceral angiography for diagnosing arteriovenous malformations of the intestine, even in children.