title: Small bowel gastrointestinal stromal tumours and ampullary cancer in Type 1 neurofibromatosis.
abstract: BACKGROUND
  Type 1 neurofibromatosis (NF-1) is an autosomal dominant disorder with variable penetrance; approximately 50% of cases present as new mutations
  
  
  METHODS
  We report a case of a 56 year-old man with Von Recklinghausen's disease, carcinoma of the ampulla of Vater and incidental benign gastrointestinal stromal tumours of the jejunum.
  
  
  CONCLUSIONS
  Coexistence between ampullary carcinoid, ectopic pancreatic tissue in the jejunum and neurofibroma of the jejunum in NF-1 has been previously described however; the association of synchronous carcinoma of the ampulla of Vater and gastrointestinal stromal tumour of the jejunum in NF-1 has not been previously reported.
authors.affiliation: Gastrointestinal Surgery Unit, Royal Marsden NHS Trust, 203 Fulham Road, London SW3 6JJ, UK. kbehranwala@hotmail.com
authors.forename: Kasim A
authors.initials: KA
authors.lastname: Behranwala
authors.forename: Duncan
authors.initials: D
authors.lastname: Spalding
authors.forename: Andrew
authors.initials: A
authors.lastname: Wotherspoon
authors.forename: Cyril
authors.initials: C
authors.lastname: Fisher
authors.forename: Jeremy N
authors.initials: JN
authors.lastname: Thompson