Gastric heterotopia (GH) is a rare congenital condition, than refers to the presence of gastric mucosa in other organs, it can be potentially found in any anatomical sites in the body, but it typically involves the gastrointestinal tract. Herby we report a case of bowel obstruction caused by a long segment of distal ileum affected by GH. The disease had determined complete obliteration of the ileum lumen. Patient was successfully treated with a right hemicolectomy extended to the terminal ileum and primary ileocolic anastomosis. The presence of GH in the small bowel beyond the ligament of Traitz is generally found associated with congenital anomalies like the Meckel’s diverticulum or intestinal duplication, while its isolate finding is extremely rare. It is even more rare the presence of a long tract of small bowel affected by GH causing intestinal obstruction. Its diagnosis can be challenging as symptomatology is generally very vague and depends on the site and on the extent of the disease. Its clinical presentation and radiological findings can often mimic Inflammatory Bowel Disease (IBD). GH can present as occult bleeding, abdominal pain, but extremely rarely it cause bowel obstruction.
We believe that GH has to be listed in the differential diagnosis and opportunely investigated in those cases of occult bleedings, abdominal pain and dyspepsia where other diagnosis have been already ruled out.
Keywords: Gastric heterotopia, Bowel obstruction