[CT study in primary low spinal fluid pressure syndrome].
CT findings in primary low spinal fluid pressure syndrome are studied on the basis of 3 cases. Case 1 was a 43-year-old male with a complicated bilateral isodense subdural hematoma (SDH). Case 2 was a 45-year-old female with a complicated bilateral high dense SDH. Case 3 was a 36-year-old female discharged without any complications after spinal fluid pressure normalized. Slight downward displacement of the brain under low spinal fluid pressure is shown as the narrowing of with a Sylvian fissures and infratentorial cisterns on CT. On the other hand in this syndrome with a complicated bilateral isodense SDH, in addition to this finding CT reveals distortion and narrowing of body of lateral ventricles, which may be the differential findings from this syndrome without complicated SDH. Under low spinal fluid pressure, bridging veins are more stretched by a downward displacement of the brain. And consequently they are easily insured and SDH is developed.
Hoshino
M
M
Department of Neurology, Ohmiya Red Cross Hospital.
Okayama
K
K
Kubo
H
H
Watanabe
H
H
Endou
R
R
D000328:Adult; D001921:Brain / Q000000981:diagnostic imaging*; D015170:Cerebrospinal Fluid Pressure; D005260:Female; D006408:Hematoma, Subdural / Q000000981:diagnostic imaging / Q000503:physiopathology; D006801:Humans; D008297:Male; D013577:Syndrome; D014057:Tomography, X-Ray Computed