title: Intradiploic arachnoid cyst with extensive deformation of craniofacial osseous structures: case report.
abstract: OBJECTIVE
  A unique case of a large intradiploic arachnoid cyst involving craniofacial osseous structures is reported.
  
  
  METHODS
  The patient presented with a hard mass in the right frontal region, proptosis, and inferior globe displacement. Computed tomography revealed an intraosseous cyst of cerebrospinal fluid intensity with extension from the anterior cranial fossa to the infratemporal fossa.
  
  
  METHODS
  After resection of the cyst wall and closure of two small round dural defects, the involved craniofacial region was reconstructed.
  
  
  CONCLUSIONS
  The medical history of the patient and the intraoperative observations support the contention that the cyst in the reported case was congenital in origin. The features concerned with diagnosis and pathogenesis of this rare entity are discussed.
authors: Department of Neurosurgery, Institute of Pathology, University Hospital Leipzig, Germany.
authors: W
authors: W
authors: Krupp
authors: J
authors: J
authors: Döhnert
authors: S
authors: S
authors: Kellermann
authors: V
authors: V
authors: Seifert
mesh_terms: D000328:Adult; D016080:Arachnoid Cysts / Q000473:pathology* / Q000601:surgery; D019465:Craniofacial Abnormalities / Q000473:pathology* / Q000601:surgery; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D019651:Plastic Surgery Procedures; D014057:Tomography, X-Ray Computed