[Tubulo-villous adenoma of the duodenum: case report and review of the literature].

In the literature only 123 cases of tubulovillous adenoma of the duodenum have so far been reported. This rare tumor can be readily diagnosed by endoscopy or hypotonic duodenography. Complete surgical or endoscopic removal is necessary in view of cancerous degeneration in 53% of cases. Depending on the localization, extension and size of the tumor, duodenal segment resection, duodenotomy and submucosal excision or duodenopancreatectomy is the best surgical procedure.