Alioune Badara Thiam - Assisstant Professor of Neurosurgery. Neurosurgery Clinic, Fann National University Hospital, Dakar, Senegal, West Africa
Elyse Denise Okome Mezui - Fellowship of Neurosurgery, University of Montreal, Chief Assistant of Neurosurgery. Universite of Health Sciences of Gabon, West Africa
Ndaraw Ndoye - Assisstant Professor of Neurosurgery. Neurosurgery Clinic, Fann National University Hospital, Dakar, Senegal, West Africa
Mbaye Thioub - Chief Assistant of Neurosurgery. Neurosurgery Clinic, Fann National University Hospital, Dakar, Senegal, West Africa

Introduction: Colloid cyst of the third ventricle is a rare intracranial benign tumor. Traditionally, treatment is carriedout by transcallosal or transcortical transventricular approach. Currently, the endoscopic treatment of these lesions isincreasingly used. We reported our preliminary experience about three cases of colloid cysts treated by neuroendoscopy.Methods and Patients: We conducted a retrospective study on the analysis of medical records of three patients withcolloid cyst who had been operated endoscopically in our department. We used a rigid neuroendoscope of 2.7 mm indiameter, with an optical 30°. Coagulation of the wall, followed by a puncture aspiration of cystic contents and partialresection of its wall were performed during the surgery. The mean follow-up time was two years.Results: Patients were 35, 47, and 53 years old. They were male. The dominant clinical symptom was headaches withconsciousness disorder. Brain MRI allowed the diagnosis in all cases. The mean operation time was 100 minutes. A caseof intraoperative hemorrhage was observed, necessitating the installation of an EDV. The outcome was favorable in twopatients, and after surgery we observed one case of meningitis treated. One case of transient amnesia and one death werereported.Conclusion: Preliminary results of endoscopic treatment of colloid cysts were encouraging. It is a promising techniquein our department. However, more investigation is necessary.

Colloid Cyst; Hydrocephalus; Neuroendoscopy