Gastric wall abscesses are rare infectious pathologies. We present a 11-year-old boy who had complaints of abdominal pain and vomiting and was diagnosed as gastric wall abscess. He presented with complaints of abdominal pain and vomiting that had started two days ago. He also had a history of Myasthenia Gravis. Computerized tomography scans revealed increased focal thickness between the pylorus and antrum, marked perigastric inflammation and submucosal multiple abscesses in the gastric wall. Oral intake was stopped and parenteral antibiotic treatment was started. After ten days of antibiotic treatment, the patient was discharged. Three weeks later, abdominal ultrasonography revealed minimal thickness in the stomach wall. Gastric wall abscesses are very rare entities that must certainly be differentiated from malignancies. This rare infectious condition that has not been clearly defined in children in the literature can be treated by potent antibiotherapy without any invasive interventions

Keywords: Abdominal pain, Abscess, Antibiotic, Children, Gastric