title: Inflammatory myofibroblastic tumor causing ileoileal intussusception: an unusual cause of an unusual neoplasm in an adult, with a clinicopathological review of the literature.
abstract: An inflammatory myofibroblastic tumor (IMT) of the ileum is a very rare lesion of the gastrointestinal tract. A 36-year-old female presented with abdominal fullness and colicky pain of 5 days' duration. Plain abdominal radiography showed an intestinal obstruction with dilated jejunal loops. Abdominal computed tomography and ultrasonography demonstrated a well-defined intraluminal solid mass surrounded by the typical mural layers of an invaginated ileum. The patient then underwent an exploratory laparotomy under a clinical diagnosis of intussusception caused by a small bowel tumor. The surgical findings revealed a large mass leading to an ileoileal intussusception, with regional lymph node enlargement and a small bowel resection accompanied by lymph node dissection was performed. The definitive diagnosis of IMT was confirmed by both conventional histopathology and minute immunohistochemistry.
authors.affiliation: Department of Surgery, National Health Insurance Oami Hospital, 884-1 Tomita, Oamishirasato-machi, Sanbu-gun, Chiba, 299-3221, Japan. ambiru-s@umin.ac.jp.
authors.forename: Satoshi
authors.initials: S
authors.lastname: Ambiru
authors.affiliation: Department of Surgery, National Health Insurance Oami Hospital, 884-1 Tomita, Oamishirasato-machi, Sanbu-gun, Chiba, 299-3221, Japan.
authors.forename: Shunta
authors.initials: S
authors.lastname: Nakamura
authors.affiliation: Department of Surgery, National Health Insurance Oami Hospital, 884-1 Tomita, Oamishirasato-machi, Sanbu-gun, Chiba, 299-3221, Japan.
authors.forename: Terumi
authors.initials: T
authors.lastname: Itabashi
authors.affiliation: Department of Surgery, National Health Insurance Oami Hospital, 884-1 Tomita, Oamishirasato-machi, Sanbu-gun, Chiba, 299-3221, Japan.
authors.forename: Seiji
authors.initials: S
authors.lastname: Furuya
authors.affiliation: Department of Clinical Pathology, Chiba Foundation for Health Promotion and Disease Prevention, 32-14 Shinminato, Mihama-ku, Chiba, 261-0002, Japan.
authors.forename: Takeichiro
authors.initials: T
authors.lastname: Kuwahara
authors.affiliation: Department of Internal Medicine, National Health Insurance Oami Hospital, Sanbu-gun, Chiba, Japan.
authors.forename: Shouichi
authors.initials: S
authors.lastname: Tsuchiya
authors.affiliation: Department of Internal Medicine, National Health Insurance Oami Hospital, Sanbu-gun, Chiba, Japan.
authors.forename: Yuji
authors.initials: Y
authors.lastname: Hattori
authors.affiliation: Department of Internal Medicine, National Health Insurance Oami Hospital, Sanbu-gun, Chiba, Japan.
authors.forename: Hideaki
authors.initials: H
authors.lastname: Suzuki
authors.affiliation: Department of Internal Medicine, National Health Insurance Oami Hospital, Sanbu-gun, Chiba, Japan.
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Tanaka
authors.affiliation: Department of Internal Medicine, National Health Insurance Oami Hospital, Sanbu-gun, Chiba, Japan.
authors.forename: Shingo
authors.initials: S
authors.lastname: Yamagata
authors.affiliation: Department of Internal Medicine, National Health Insurance Oami Hospital, Sanbu-gun, Chiba, Japan.
authors.forename: Hideki
authors.initials: H
authors.lastname: Takanashi
authors.affiliation: Department of Surgery, National Health Insurance Oami Hospital, 884-1 Tomita, Oamishirasato-machi, Sanbu-gun, Chiba, 299-3221, Japan.
authors.forename: Takenori
authors.initials: T
authors.lastname: Shimura
authors.affiliation: Department of General Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8677, Japan.
authors.forename: Masaru
authors.initials: M
authors.lastname: Miyazaki
keywords: Gastrointestinal mesenchymal tumor; Ileum; Immunohistochemistry