Video: Intracranial Cysts Containing CSF-like Fluid: Results of Endoscopic Neurosurgery Video 4

This video demonstrates that the endoscopic fenestrations may be as wide and extended as the microsurgical ones. As soon as the neurovascular structures are identified, the arachnoid dissection is conducted in the optico-carotid cistern with the progressive exposure of optic nerve, ICA, MCA, and ACA.

Video: Intracranial Cysts Containing CSF-like Fluid: Results of Endoscopic Neurosurgery Video 3

This video demonstrates the neuronavigator is useful to approach precisely the target, but the final step has to be performed sailing by sight. In this case of opaque cyst wall, the fenestration is performed under endoscopic control basing on the neuronavigator information. There is no “shift effect” and the fenestration is precisely performed where it has been preoperatively planned.

Video: Intracranial Cysts Containing CSF-like Fluid: Results of Endoscopic Neurosurgery Video 2

In this video, through the same burr hole of video 1, the endoscope points upwards and the cyst is fenestrated towards the pre-pontine cisterns.

Video: Intracranial Cysts Containing CSF-like Fluid: Results of Endoscopic Neurosurgery Video 1

In this video, through a burr hole in the occipital squama, the endoscope points downwards and a posterior fossa cyst is fenestrated towards the foramen magnum and the upper cervical canal.