Cylinder tumor surgery in pediatric low-grade gliomas.

Background: Periventricular pediatric low-grade gliomas (pLGG) present a surgical challenge due to their deep-seated location, accessibility, and relationship with the subcortical network connections. Minimally invasive parafascicular approaches with tubular brain retractors (port brain surgery) have emerged, in recent years, as an alternative to conventional microsurgical and endoscopic approaches for removal of periventricular tumors.

Objectives: To describe the minimally invasive approach with tubular brain retractors for periventricular pLGG, its technique, applications, safety, and efficacy.

Choroid plexus cyst causing acute hydrocephalus and transtentorial herniation: report of a rare case and its successful neuroendoscopic treatment.

Choroid plexus cysts (CPC) are a frequent incidental neuroimaging finding and completely asymptomatic in the vast majority of cases. We hereby describe a rare case of acute hydrocephalus secondary to a CPC, atypical in size, location and presentation, which required urgent neuroendoscopic management. There are very few reported cases of CPC causing obstructive hydrocephalus.