2020 年 96 巻 1 号 p. 159-160
A 76-year-old woman admitted to our hospital with a positive test for fecal occult blood. Colonoscopy revealed a reddish 20 mm-sized polyp with a nodule in the transverse colon. The nodule partially contained a vessel pattern of JNET type 2B. Therefore, we conducted endoscopic mucosal resection (EMR) for diagnosis and treatment. The specimen led to a diagnosis of inflammatory fibroid polyp (IFP) based on predominantly of eosinophils and onion skin pattern. IFP is an inflammatory lesion arising from the submucosal layer. It is commonly found in the stomach or small intestine, but rarely in the colon.