Endoscopic fenestration of the third ventricle in the reverse direction.
BACKGROUND
A case of safely treated parasellar cyst by endoscopic fenestration of the third ventricular floor from outside of the ventricle to establish communications between the cyst and the ventricle is reported.


METHODS
During the endoscopic procedures, the anterior commissure and the foramina of Monro could be clearly observed using this approach.


CONCLUSIONS
In treating parasellar cysts with thick walls, endoscopic fenestration of the third ventricular floor in the reverse direction, i.e., from inside of the cyst, should be considered.
Nishiyama
Kenichi
K
Department of Neurosurgery, Brain Research Institute, University of Niigata, Asahimachi 1, Niigata, 951, Japan. nishiken@d4.dion.ne.jp
Mori
Hiroshi
H
Yoshimura
Junichi
J
Fujii
Yukihiko
Y
D016080:Arachnoid Cysts / Q000473:pathology / Q000601:surgery; D002675:Child, Preschool; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male; D044583:Neuroendoscopy / Q000379:methods*; D013506:Otologic Surgical Procedures / Q000379:methods*; D020542:Third Ventricle / Q000601:surgery*