en Gamma Knife Radiosurgery Research <p><strong>Introduction</strong>: Colloid cyst of the third ventricle is a rare intracranial benign tumor. Traditionally, treatment is carried out by transcallosal or transcortical transventricular approach. Currently, the endoscopic treatment of these lesions is increasingly used. We reported our preliminary experience about three cases of colloid cysts treated by neuroendoscopy.</p> <p><strong>Methods and Patients:</strong> We conducted a retrospective study on the analysis of medical records of three patients with colloid cyst who had been operated endoscopically in our department. We used a rigid neuroendoscope of 2.7 mm in diameter, with an optical 30&deg;. Coagulation of the wall, followed by a puncture aspiration of cystic contents and partial resection of its wall were performed during the surgery. The mean follow-up time was two years.</p> <p><strong>Results: </strong>Patients were 35, 47, and 53 years old. They were male. The dominant clinical symptom was headaches with consciousness disorder. Brain MRI allowed the diagnosis in all cases. The mean operation time was 100 minutes. A case of intraoperative hemorrhage was observed, necessitating the installation of an EDV. The outcome was favorable in two patients, and after surgery we observed one case of meningitis treated. One case of transient amnesia and one death were reported. <strong>Conclusion:</strong> Preliminary results of endoscopic treatment of colloid cysts were encouraging. It is a promising technique in our department. However, more investigation is necessary.</p> Colloid Cyst, Hydrocephalus, Neuroendoscopy 15 19 http://irjns.org/browse.php?a_code=A-10-100-36&slc_lang=en&sid=1 Alioune Badara Thiam علیون بادارا تیام 10031947532846003054 10031947532846003054 No MD, Assisstant Professor of Neurosurgery, Neurosurgery Clinic, Fann National University Hospital, Dakar, Senegal, West Africa Elyse Denise Okome Mezui الیس دنیس اکوم مزویی 10031947532846003055 10031947532846003055 No MD, Fellowship of Neurosurgery, University of Montreal, Chief Assistant of Neurosurgery, Universite of Health Sciences of Gabon, West Africa Ndaraw Ndoye اندارا اندوی 10031947532846003056 10031947532846003056 No MD, Assisstant Professor of Neurosurgery, Neurosurgery Clinic, Fann National University Hospital, Dakar, Senegal, West Africa Mbaye Thioub امبای تیوب 10031947532846003057 10031947532846003057 No MD, Chief Assistant of Neurosurgery, Neurosurgery Clinic, Fann National University Hospital, Dakar, Senegal, West Africa Seydou Boubacar Badiane سید بوباکار باداین 10031947532846003058 10031947532846003058 Yes MD, Professor of Neurosurgery, Head of Neurosurgery Clinic, Fann National University Hospital, Dakar, Senegal, West Africa