Neuroendoscopic septostomy: Indications and surgical technique.

Endoscopic septostomy is the treatment of choice for monolateral obstruction of the foramen of Monro. Common causes of this condition include: neoplasms, hemorrages, infections, congenital atresia, idiopathic occlusion. All the steps for performing a safe endoscopic pellucidotomy are presented. A brief discussion about the most common technical variations and their rationale is added. Endoscopic pellucidotomy is a safe and effective treatment when a thorough understanding of anatomy is achieved