title: Intracranial mucocele as a complication of endoscopic repair of cerebrospinal fluid rhinorrhea: case report.
abstract: OBJECTIVE
  Endoscopic repair of an anterior cranial fossa cerebrospinal fluid (CSF) fistula has gained widespread acceptance. We report a case of mucocele development at the site of an endoscopic CSF leak repair.
  
  
  METHODS
  A 46-year-old woman underwent functional endoscopic sinus surgery for nasal obstructive symptoms. The surgery was complicated by an intraoperative CSF leak from the posterior cribriform plate/anterior sphenoid, which was repaired immediately using bone and mucosa grafts. Two years postoperatively, a 13-mm anterior cranial base mass was found incidentally. This mass increased to 20 mm over the next year.
  
  
  METHODS
  The anterior cranial base mass was excised via a right frontal craniotomy and confirmed histologically to be a mucocele.
  
  
  CONCLUSIONS
  Endoscopic repair of an anterior cranial base CSF fistula with mucosal grafts may lead to formation of a mucocele.
authors.affiliation: Department of Neurosurgery, New England Medical Center, Boston, Massachusetts, USA.
authors.forename: L
authors.initials: L
authors.lastname: Wang
authors.forename: J
authors.initials: J
authors.lastname: Kim
authors.forename: C B
authors.initials: CB
authors.lastname: Heilman
mesh_terms: D016025:Bone Transplantation; D002559:Cerebrospinal Fluid Rhinorrhea / Q000473:pathology / Q000601:surgery*; D003399:Craniotomy; D004724:Endoscopy; D005260:Female; D006801:Humans; D008875:Middle Aged; D009078:Mucocele / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D011183:Postoperative Complications / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D012086:Reoperation; D019291:Skull Base / Q000601:surgery