title: Epithelial inclusion cyst arising within an intra-pancreatic splenunculus.
abstract: BACKGROUND
  An accessory spleen (splenunculus) may occur in up to 10% of the general population. However, an epithelial inclusion cyst originating within an intra-pancreatic splenunculus is an extremely rare finding, with only twenty-two previous cases described in medical literature.
  
  
  METHODS
  A 51-year-old male presented to our institution for investigation of altered bowel habit. Endoscopic ultrasound examination and CT scanning demonstrated an 18 mm cystic, well-demarcated lesion in the tail of the pancreas, resembling malignancy. Following laparoscopic spleen-preserving distal pancreatectomy, histological analysis confirmed epithelial inclusion cyst arising within an intra-pancreatic splenunculus.
  
  
  CONCLUSIONS
  The pre-operative radiological identification of such cystic pancreatic lesions is challenging. Surgical resection is usually performed for clinical suspicion of pancreatic malignancy.
  
  
  CONCLUSIONS
  Epithelial inclusion cyst originating within an intra-pancreatic accessory spleen is an extremely rare finding, which can mimic malignancy. Nevertheless, it should be carefully considered in the differential diagnosis of cystic lesions of the tail of the pancreas.
authors.affiliation: Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Campus, Du Cane Road, London W12 0HS, United Kingdom.
authors.forename: Nikolaos
authors.initials: N
authors.lastname: Panagiotopoulos
authors.forename: Metesh
authors.initials: M
authors.lastname: Acharya
authors.forename: Raida
authors.initials: R
authors.lastname: Ahmad
authors.forename: Devinder
authors.initials: D
authors.lastname: Bansi
authors.forename: Long
authors.initials: L
authors.lastname: Jiao