Abstract
Background Total removal of craniopharyngioma is the most acceptable therapeutic modality; however,
there are cases in which radical excision is not possible. To reduce the cystic component
volume, an Ommaya reservoir catheter can be placed endoscopically. However, there
are certain complications and risks with this type of maneuver, such as misplacement
of the catheter, which may result in leakage of cyst contents or installed fluids
such as bleomycin. Thus, accurate placement of intracystic catheter is extremely important.
Patients and Methods The authors placed Ommaya reservoir catheters running over the outer surface of a
transparent endoscopic sheath in three cases.
Results This neuroendoscopic procedure permits easier manipulation of the catheter and precise
placement of the catheter tip. This technique was useful for placement of Ommaya reservoir
catheters.
Conclusions This new technique of catheter placement with neuroendoscopy is more accurate, safer,
and less invasive.
Keywords
craniopharyngioma - neuroendoscope - neuronavigation - Ommaya reservoir
