Related Experiment Video
Updated: May 27, 2026

Establishment of Orthotopic Patient-derived Xenograft Models for Brain Tumors using a Stereotaxic Device
Published on: May 2, 2025
Clinical experience with a rare brainstem tumor: ganglioglioma. Illustrative case
Rafael de Almeida1, Felipe Y Castro2,3, Luthiari Ferri4,5
1Regional University of Northwestern Rio Grande do Sul, Rio Grande do Sul, Brazil.
Background:
The authors present a case of bulbar ganglioglioma. Previously, there have only been 4 cases reported in the literature of surgery on a tumor originating in the medulla.
Observations:
A psychiatric patient presented with symptoms of intracranial hypertension. An MRI study showed a tumor near the fourth ventricle. Surgical intervention was performed, and complete resection and radiological cure were achieved.
Lessons:
Tumors of the fourth ventricle, especially fibroelastic gangliogliomas, represent a complex surgical challenge due to their eloquent location and adhesions. Complete resection requires the use of microscopy and an ultrasonic aspirator. Treatment should be individualized, prioritizing maximum and safe resection, with close follow-up, while radiotherapy remains controversial and of limited indication. https://thejns.org/doi/10.3171/CASE25776.

