A case of Gastric Inflammatory Fibroid polyp incarcerated into the duodenum caused anemia

Abstract

An 80-years-old woman was admitted to our hospital complaining of feeling uncomfortable bowel distention after eating. Endoscopic examination showed a protruding lesion completely prolapsing into the duodenal bulb.
After we corrected the incarcerated tumor by 2 channel-double-grasper method, endoscopic examination and upper gastrointestinal series revealed the polyp-like formation which the appearance of the overlying mucosa is smooth and the top is decidualized. Pathological examination of biopsy specimen showed no evidence of malignancy. The tumor was guessed as an inflammatory fibroid polyp (IFP) arising from the anterior wall of pyloric zone. To diagnose the tumor, a distal partial gastrectomy was performed. Pathologically, the 4-cm-diameter tumor was an IFP. We report a suggestive case of IFP of the gastric antrum prolapsing into duodenum.