title: Growing burr hole: enlarging pseudomeningocele at the site of a craniostomy.
abstract: BACKGROUND
  Growing skull fractures and other enlarging skull defects are rare postoperative occurrences. We report here on a 10-month-old girl who presented with an enlarging burr hole and pseudomeningocele after an endoscopic third ventriculocisternostomy.
  
  
  METHODS
  Evaluation of an enlarging subcutaneous mass at the site of the burr hole included computed tomography scans and magnetic resonance imaging, which revealed a pseudomeningocele. The patient underwent repair of the lesion, including dural closure and cranioplasty.
  
  
  CONCLUSIONS
  Growing skull fractures or other enlarging bone defects may occur after burr hole placement, particularly in infants who require larger access sites for endoscopy.
authors.affiliation: Department of Neurosurgery, New York Medical College, Valhalla and New York, NY 10595, USA. david_harter@nymc.edu
authors.forename: David H
authors.initials: DH
authors.lastname: Harter
authors.forename: Ronald
authors.initials: R
authors.lastname: Swanger
authors.forename: Michael
authors.initials: M
authors.lastname: Tenner
mesh_terms: D003399:Craniotomy / Q000009:adverse effects*; D004677:Encephalocele; D004724:Endoscopy / Q000009:adverse effects; D005260:Female; D006801:Humans; D007223:Infant; D008279:Magnetic Resonance Imaging / Q000379:methods; D011183:Postoperative Complications; D012886:Skull / Q000000981:diagnostic imaging / Q000254:growth & development / Q000601:surgery*; D012887:Skull Fractures / Q000000981:diagnostic imaging / Q000209:etiology / Q000601:surgery*; D020542:Third Ventricle / Q000601:surgery; D014057:Tomography, X-Ray Computed / Q000379:methods; D014696:Ventriculostomy / Q000009:adverse effects