Frame-Based Stereotactic-Guided Excision of Colloid Cyst of Cavum Septum Pellucidum through Transcallosal Approach—A Technical Note

Abstract

Colloid cyst is a rare benign intracranial lesion. Due to its embryologic origin and development, it is commonly located within the third ventricle, though it also presents at various locations. Its location within cavum septum pellucidum is rarely reported. Operative approaches to such lesion can be challenging and misleading due to intraoperative variations. However, surgical resection in such locations are simplified and perfected with stereotactic guidance. A case of colloid cyst within the cavum septum pellucidum and the importance of stereotactic guidance in precisely reaching the lesion, thus minimizing the dissection of corpus callosum, are discussed.

Keywords

• colloid cyst
• cavum septum pellucidum
• stereotactic-guided excision
• transcallosal approach