Neurenteric Cyst of the Ventral Craniocervical Junction: Case Report and Review of the Literature.

Background: Neurenteric cysts (NCs) are rare, non-neoplastic lesions arising from a failure of dissolution of the transient neurenteric canal between the foregut and the notochord. They are most frequently seen in the intradural extramedullary space in the lower cervical and upper thoracic spine. The authors describe a rare case of NC arising from the ventral cervicomedullary junction that was totally resected via a posterior approach.

En-bloc craniotomy for the pre-sigmoid infra- and supratentorial approach: technical note.

Introduction: The combined supra-infratentorial approach as described some 30 years ago is to date considered a standard procedure for skull base procedures. Several variants have been devised, including preservation of the mastoid process. We herein present the cosmetically most sophisticated and fastest solution.