[Gastric and duodenal villous tumor: new diagnostic and therapeutic possibilities].

With reference to recent data reported in the literature, the authors stress the importance of new techniques for the diagnosis and management of gastrointestinal villous adenoma. This is a comparatively infrequent tumor which usually occurs in adults above the age of 50 and has no familial incidence. The tumor is apt to evolve towards malignancy. Radiology, and more recently endoscopy permit to ascertain the diagnosis. Endoscopic resection is the treatment of choice while surgical ablation is indicated in sessile or extensive forms.