[Spontaneous posterior sphenoid sinus fistula].
OBJECTIVE
Describe a rare localization of spontaneous cerebrospinal fistula.


METHODS
A 75-year-old women was admitted for bacterial meningitis arising from a sinus infection. She had not experienced facial or head trauma. The CT-scan revealed pneumocephaly and a defect in the posterior part of the sphenoid sinus.


CONCLUSIONS
Spontaneous cerebrospinal fistula is uncommon. The exact etiology remains unknown.
Crozier
F
F
Service de Radiologie, Centre Hospitalier Henri Duffaut, Avignon. Fcrozier@ch-avignon.fr
Goubert
J-L
JL
Gobert
P
P
Bohé
D
D
Martin
N
N
Roumieu
G
G
Arwidson
I
I
D000368:Aged; D005260:Female; D005402:Fistula / Q000000981:diagnostic imaging* / Q000601:surgery; D006801:Humans; D010254:Paranasal Sinus Diseases / Q000000981:diagnostic imaging* / Q000601:surgery; D013101:Sphenoid Sinus / Q000000981:diagnostic imaging* / Q000601:surgery; D014057:Tomography, X-Ray Computed