title: Bifrontal solitary fibrous tumor of the meninges.
abstract: BACKGROUND
  We report the case of a bifrontal solitary fibrous tumor (SFT) arising from the meninges. The points of interest in this case report are the particular imaging appearance, the immunohistochemical findings and the surgical features.
  
  
  METHODS
  A 53-year-old Caucasian male presented with a 1-year history of behavioral changes, attention disorders and anterograde memory disorders. Magnetic resonance imaging revealed a bifrontal heterogeneous lesion attached to the anterior falx cerebri with a prominent multicompartmental cystic part. The patient underwent craniotomy for a sub-total resection of the tumor. At surgery, the multicystic component was highly vascularized and encased the anterior cerebral arteries. Neuropathological findings were consistent with a solitary fibrous tumor. Despite the absence of malignant features, there was a focal expression of p53.
  
  
  CONCLUSIONS
  SFT is a pathological entity with specific immunohistochemical features; it has frequently been misdiagnosed in the past. The multicystic imaging appearance of this SFT and the particular p53 immunohistochemical staining are features that should be added to the growing data on intracranial SFTs. The surgical features described (high vascularization and partial vessel encasement) may help improve surgical planning.
authors.affiliation: Neurosurgery Department, Centre Hospitalier Universitaire Vaudois (CHUV), Rue du Bugnon 46, Switzerland.
authors.forename: Michael
authors.initials: M
authors.lastname: Benoit
authors.forename: Robert-Charles
authors.initials: RC
authors.lastname: Janzer
authors.forename: Luca
authors.initials: L
authors.lastname: Regli