title: Intraparenchymal supratentorial neurenteric cyst.
abstract: BACKGROUND
  Neurenteric cysts are congenital cysts of the central nervous system that are believed to be of endodermal origin. In this report we present the unique case of a supratentorial neurenteric cyst that is contained entirely within the brain parenchyma.
  
  
  METHODS
  A patient presented with an intraparenchymal cystic lesion that was subsequently identified as a neurenteric cyst. This lesion is reviewed in light of the available literature.
  
  
  METHODS
  A 35-year-old female presented with a one year history of progressive headaches and seizure-like episodes. Her examination revealed no deficits. Magnetic resonance imaging showed a 4 cm x 4 cm x 4 cm cystic lesion within the parenchyma of the right frontal lobe. A right frontal craniotomy and complete excision of the cystic lesion was performed. Pathologic examination confirmed that it was a neurenteric cyst. Postoperatively the patient's symptoms improved.
  
  
  CONCLUSIONS
  Review of the literature revealed this to be the first case of a surgically excised, pathologically confirmed supratentorial neurenteric cyst, contained entirely within the brain parenchyma.
authors.affiliation: Division of Neurosurgery, Department of Clinical Neurological Sciences, London Health Sciences Centre, University of Western Ontario, London, Ontario, Canada.
authors.forename: Edward
authors.initials: E
authors.lastname: Kachur
authors.forename: Lee-Cyn
authors.initials: LC
authors.lastname: Ang
authors.forename: Joseph F
authors.initials: JF
authors.lastname: Megyesi
mesh_terms: D000328:Adult; D020863:Central Nervous System Cysts / Q000151:congenital / Q000473:pathology* / Q000601:surgery; D005260:Female; D005625:Frontal Lobe / Q000002:abnormalities* / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging