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Case Reports
. 2020:72:52-55.
doi: 10.1016/j.ijscr.2020.05.049. Epub 2020 May 29.

Ileo-ileal intussusception caused by small bowel leiomyosarcoma: A rare case report

Erica Mazzotta  1 , Sara Lauricella  2 , Filippo Carannante  2 , Gianluca Mascianà  2 , Marco Caricato  2 , Gabriella T Capolupo  2
Affiliations
Case Reports

Ileo-ileal intussusception caused by small bowel leiomyosarcoma: A rare case report

Erica Mazzotta et al. Int J Surg Case Rep. 2020.

Abstract

Introduction: Intussusception is the telescoping of one segment of the bowel into an adjacent bowel segment, causing venous congestion, edema, and blood supply reduction. We present a case of ileo-ileal intussusception in an adult patient with intestinal obstruction caused by a rare mesenchymal malignant lesion of the distal ileum: Leiomyosarcoma (LMS).

Presentation of case: A 90-year-old Caucasian man presented to the hospital with a two-day history of abdominal pain, nausea, and bowel occlusion. Preoperative Computer Tomography (CT) showed a solid mass with stratified walls in the lumen of the cecum with the classics "bulls-eye" appearance with concentric rings, suggestive of intussusception. The patient underwent emergency laparotomy with evidence of a small bowel wall tumor driving ileo-ileal intussusception with ischemic damage. Ileocecal resection was performed without postoperative complications. Histopathological examination showed a tumor on the muscular layer of the small bowel. The definitive diagnosis was LMS.

Discussion: Adult intussusception is a rare condition, with an incidence of 2/1 000 000 cases per year worldwide. About 60% of patients suffering from this disease require surgery. Clinical presentation can be non-specific because of its no characteristic signs and symptoms. The most common presenting symptom is abdominal pain with bowel obstruction sings. Intussusception can occur anywhere along the small and large intestine and it is typically associated with a Lead Point (LP). The LP may be benign or malignant conditions. Infrequent malignant causes include LMS.

Conclusion: Diagnosis of intussusception is relatively challenging because of its non-specific symptoms. CT scan is the examimation of choice for the diagnosis because of its peculiar images. In adults, surgical treatment is recommended with laparoscopic or open approach according to surgeon expertise, sometimes in an emergency setting.

Keywords: Ileal neoplasm; Intussusception; Leiomyosarcoma.

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Figures

Fig. 1
Fig. 1
Classic “Bulls eye” appearance with concentric rings in a CT scan axial view; evidence of solid mass of the terminal ileum with stratified walls in the lumen.
Fig. 2
Fig. 2
Characteristic “telescoping” of the small bowel.
Fig. 3
Fig. 3
Ileal leiomyosarcoma with ischemic suffering of the adjacent intestinal bowel wall.
See this image and copyright information in PMC

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