Case
About this case
Operative video: the Intraventricular, through the Retrosigmoid (Suboccipital) approach. The background notes below summarise the anatomy, pathology and approach, with published references.
Reference notes
Background
Notes on this case’s cranial location, pathology and surgical approach, with published sources. General education only, not advice for any individual patient.
Cranial Location
Intraventricular
Intraventricular lesions arise within the lateral, third or fourth ventricles and often present with obstructive hydrocephalus rather than a focal deficit. Access requires a transcortical or interhemispheric transcallosal corridor chosen to spare eloquent cortex and the deep veins.
Common entities include colloid cysts, central neurocytomas, ependymomas, subependymomas and choroid-plexus tumours. Endoscopic techniques increasingly address both the lesion and the obstructed CSF pathways in the same procedure.
