Heterotopic gastric mucosa (HGM) occurrence outside of Meckel's diverticulum and intestinal duplication is a very rare pathology of the gut. Herein we report a complicating recurrence of unusual localization HGM in the small intestine. A 13-year-old boy presented with abdominal pain and melena. He had a medical history of prior surgery due to ectopic gastric mucosa, complicated with perforation and bleeding. In the differential diagnosis, Tc 99m pertechenate scintigraphy demonstrated ectopic gastric mucosa in the midgut. In laparatomy, approximately 90 cm of the small bowel including the abnormal segment was resected and the patient did well. Gastric heterotopia of the small intestine is a rare pathology. These lesions can be confused with other disorders of the intestine (intussusseption, infectious diarrhea, inflammatory bowel disease, etc). Total resection cures the condition. However, it should be kept in mind that microscopic residuals can cause relapses.