A Case of Adult Duplication of the Ileum with Diverticulitis

Abstract

A rare case of ileal duplication with diverticulitis is presented. A 62-year-old man presented with navel pain and was referred to our hospital. Abdominal computed tomography scan showed swelling of an appendix-like structure and an increased concentration of fat tissue surrounding the intestine. Blood biochemical examinations showed a high degree of inflammation. Based on the above, appendicitis or an appendiceal myxoma was suspected, and surgery was performed. Intraoperatively, intestinal-like tubular structures with inflammation with a blind end on the mesentery of the ileum were seen and resected as the suspected cause of the symptoms. The pathological findings of the resected intestinal canal structure showed intestinal mucosa and a muscular layer, and it was diagnosed as ileal duplication. In addition, a diverticulum was present in the duplicated intestinal tract, and inflammatory cell infiltration was found around the diverticulum, leading to a diagnosis of diverticulitis occurring in the duplicated intestinal tract.