[Exogastric cystic schwannoma. Observation of a case]

The authors report a case of giant gastric schwannoma with dominating extra-gastric development and a cystic component simulating a pancreatic pseudo-cyst on ultrasound and computed tomography examination, the diagnosis was made only at surgery that consisted in total gastrectomy. The rarity of these tumors, their diagnostic difficulties and the particularities of their surgical treatment are outlined.