Gastric Schwannoma represent only 0.2% of all gastric tumors and 4% of all benign gastric neoplasms. They are
usually asymptomatic but can present with variable symptoms. The authors report a case of a 29-year-old male patient who
presented with fever and abdominal pain with epigastric mass. Pre-operative diagnosis was gastric lymphoma with perforation
and an abscess formation. Hemigastrectomy with Billroth II anastomosis was performed. The pathologic examination and
immunohistochemical studies confirmed gastric Schawannoma as the diagnosis. The post-operative course was uneventful.
Gastric Schwannoma are difficult if not impossible to diagnose preoperatively as endoscopic and radiologic findings are
nonspecific. The treatment of choice is complete surgical resection because of diagnostic uncertainty and the long-term
outcome is excellent. This is the first report of gastric Schwannoma presenting with concealed perforation and an abscess
formation. The literature was reviewed.

Keywords: Gastric Schwannoma, Perforation, Intrabdominal abscess