Supracerebellar Transventricular Approach
Last Updated: September 29, 2018
Small tumors in the posterior third ventricle, such as cavernous malformations, pose a significant technical challenge during their resection. Because of their small size, they do not significantly displace deep structures and therefore cannot create a suitable supratentorial operative corridor.
In these situations, I have attempted to use the supracerebellar transventricular approach. The small size of these tumors may expand and affect the tectum, and provides just enough space for me to work through the attenuated nervous tissue. Gaze disturbances are a risk, but most deficits are temporary.
The specific region of interest is the posterior segment of the third ventricle. The aqueduct and the suprapineal recess demarcate this segment.