title: Heterotopic pancreas: a rare cause of ileo-ileal intussusception.
abstract: BACKGROUND
  Heterotopic pancreas is a rare developmental anomaly defined as pancreatic tissue found on ectopic sites without contiguity with the main pancreas. An isolated heterotopic pancreas as a cause of bowel intussusception is extremely rare.
  
  
  METHODS
  A case of 47-year old male with multiple episodes of melena, constipation and abdominal pain for one year duration is presented. CT eneterography revealed a large circumferential lesion involving the terminal ileum that acted as a leading point to an ileo-ileal intussusception. The resection of the lesion and related bowel segment was carried out. The histopathological examination confirmed the excised lesion as a heterotopic pancreatic tissue.
  
  
  CONCLUSIONS
  Though a rare entity, heterotopic pancreas should be considered in the differential diagnosis of bowel intussusception.
authors.affiliation: Department of Radiology, Hamad Medical Corporation, Hamad General Hospital, Doha, Qatar.
authors.forename: Ahmed
authors.initials: A
authors.lastname: Monier
authors.affiliation: Department of Radiology, Hamad Medical Corporation, Hamad General Hospital, Doha, Qatar.
authors.forename: Ahmed
authors.initials: A
authors.lastname: Awad
authors.affiliation: Department of Radiology, Hamad Medical Corporation, National Center for Cancer Care and Research, Doha, Qatar.
authors.forename: Wojciech
authors.initials: W
authors.lastname: Szmigielski
authors.affiliation: Department of Plastic Surgery, Hamad Medical Corporation, Hamad General Hospital, Doha, Qatar.
authors.forename: Mohamed
authors.initials: M
authors.lastname: Muneer
authors.affiliation: Department of Radiology, Hamad Medical Corporation, Hamad General Hospital, Doha, Qatar.
authors.forename: Amal
authors.initials: A
authors.lastname: Alrashid
authors.affiliation: Department of Radiology, Hamad Medical Corporation, Hamad General Hospital, Doha, Qatar.
authors.forename: Adham
authors.initials: A
authors.lastname: Darweesh
authors.affiliation: Department of Radiology, Hamad Medical Corporation, National Center for Cancer Care and Research, Doha, Qatar.
authors.forename: Heba
authors.initials: H
authors.lastname: Hassan
keywords: Choristoma; Ileum; Intussusception; Pancreas