[Cerebrospinal fluid rhinorrhea from a transclival meningocele: A case report and literature review].

The most common site of CSF leakage is the floor of the anterior cranial fossa, and less commonly in the sphenoid sinus. Only 3-4% of CSF fistulas are spontaneous. The fourth case is presented of a CSF rhinorrhea due to a transclival meningocele, an extremely rare location for these lesions, and the surgical approach.

[Intrathoracic migration of a ventriculoperitoneal shunt catheter: a case report].

Background: The intrathoracic complications from ventriculoperitoneal shunt placement are very rare. However, they are potentially serious if not treated.

Clinical Case: We report the case of thoracic migration of a peritoneal catheter after ventriculoperitoneal shunt and we also review the literature references with discussion of the different mechanisms of shunt-tip migration described.

[Rosette-forming glioneuronal tumor of the fourth ventricle. Case report and literature review].

Introduction: Rosette-forming glioneuronal tumor (RGNT) of the fourth ventricle is a rare tumor that has been recently characterized. RGNT was included as a new glioneuronal tumor in 2007 by the World Health Organization (WHO) in classification of tumors of the central nervous system. Within this group we found 34 documented cases.