Abstract

We present an adult case of intussusception caused by subserosal inflammatory pseudotumor of the terminal ileum. Enteric intussusception was diagnosed by characteristic Xray finding, so called "beak-like" filling defect in the terminal ileum. An exploratory laparotomy revealed focal subserosal thickening in the terminal ileum, and partial ileocolectomy was performed. Microscopically, we identified a pseudotumor that extended through the muscularis propria into serosa. The pseudotumor was composed of fibrous stroma and chronic inflammatory cells with calcification

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