Stromal tumor of the ampulla of vater: report of a case and systematic review of reported cases.

Background: Gastrointestinal stromal tumours are a large category of primary no epithelial neoplasms of the digestive tract. The localization of stromal tumours in the ampulla of Vater (STAV) is very rare.

Aim: The aim of this study was to describe clinical, endoscopic and therapeutic particularities of STAV.