Duodenal fistula: complication of a pseudoaneurysm of the common hepatic artery.

An unusual case of an iatrogenic pseudoaneurysm arising from the common hepatic artery extending along the gastroduodenal artery and associated with an arterioduodenal fistula is reported. Angiography is the method for definitive diagnosis. In patients with obscure upper gastrointestinal bleeding, an arterioenteric fistula should be considered in the differential diagnosis, especially in those with previous vascular intervention.