title: Mesenteric gastrointestinal stromal tumour presenting as intracranial space occupying lesion.
abstract: BACKGROUND
  Gastrointestinal stromal tumours (GIST) usually present with non-specific gastrointestinal symptoms such as abdominal mass, pain, anorexia and bowel obstruction.
  
  
  METHODS
  We report a case of a 42 year old male who presented with a solitary intracranial space occupying lesion which was established as a metastasis from a mesenteric tumour.
  
  
  RESULTS
  The patient was initially treated as a metastatic sarcoma, but a lack of response to chemotherapy prompted testing for CD117 which returned positive. A diagnosis of mesenteric GIST presenting as solitary brain metastasis was made, and the patient was treated with imatinib.
  
  
  CONCLUSIONS
  We recommend that all sarcomas with either an intraabdominal or unknown origin be routinely tested for CD117 to rule out GIST.
authors.affiliation: Department of Radiotherapy and Oncology, All India Institute of Medical Sciences, New Delhi, India. tarunpuri90@hotmail.com
authors.forename: Tarun
authors.initials: T
authors.lastname: Puri
authors.forename: Gowthaman
authors.initials: G
authors.lastname: Gunabushanam
authors.forename: Monica
authors.initials: M
authors.lastname: Malik
authors.forename: Shikha
authors.initials: S
authors.lastname: Goyal
authors.forename: Anup K
authors.initials: AK
authors.lastname: Das
authors.forename: Pramod K
authors.initials: PK
authors.lastname: Julka
authors.forename: Goura K
authors.initials: GK
authors.lastname: Rath