title: Spontaneous Intraventricular Pneumocephalus.
abstract: BACKGROUND
  Pneumocephalus without a known underlying cause is defined as spontaneous pneumocephalus. Few patients of intraventricular pneumocephalus have been reported.
  
  
  METHODS
  An 84-year-old man presented with dysarthria and incontinence. Computed tomography revealed an intraventricular pneumocephalus, thinning in the petrous bone, fluid in the air cells, and cleft in temporal lobe. A right subtemporal extradural approach was taken to detect bone-/-dural defects, and a reconstruction was performed using a musculo-pericranial flap.
  
  
  CONCLUSIONS
  This is the first patient of an isolated intraventricular spontaneous pneumocephalus without any other site air involved. Surgical approaches to repair such bone and dura defects should be considered an appropriate option.
authors.affiliation: Department of Neurosurgery, Hiratsuka City Hospital, Hiratsuka City, Japan.
authors.forename: Nobuhiko
authors.initials: N
authors.lastname: Arai
authors.forename: Masanao
authors.initials: M
authors.lastname: Tabuse
authors.forename: Akiyoshi
authors.initials: A
authors.lastname: Nakamura
authors.forename: Hiromichi
authors.initials: H
authors.lastname: Miyazaki
mesh_terms: D000369:Aged, 80 and over; D004388:Dura Mater / Q000601:surgery; D006801:Humans; D008297:Male; D018579:Patient Selection; D010579:Petrous Bone / Q000000981:diagnostic imaging / Q000473:pathology; D011007:Pneumocephalus / Q000175:diagnosis / Q000209:etiology / Q000503:physiopathology / Q000601:surgery; D019651:Plastic Surgery Procedures / Q000379:methods*; D013524:Surgical Flaps; D013702:Temporal Lobe / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed / Q000379:methods; D016896:Treatment Outcome