[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.

[Chronic hypertrophic pachymeningitis: 2 clinical cases are presented].

Chronic hypertrophic pachymeningitis is an inflammatory process of unknown aetiology characterised by a thickening of the dura mater causing pseudotumoural growth. Clinical manifestations are usually secondary to compression of adjacent neurological structures but may be also secondary to inflammatory processes. Diagnosis is mainly obtained by excluding infectious, neoplastic and autoimmune causes.