77 4Válvula nasal en rinoplastíaTos en otorrinolaringología: Revisión actualizada del enfoque clínico 
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Revista de otorrinolaringología y cirugía de cabeza y cuello

 ISSN 0718-4816

MORALES, Carlos A; OSORIO, Jaime M    CANTERO, Daniel C. Cerebrospinal fluid leak of the lateral recess of the sphenoid sinus. Is Sternberg's channel a real defect?. Rev. Otorrinolaringol. Cir. Cabeza Cuello []. 2017, 77, 4, pp.449-455. ISSN 0718-4816.  http://dx.doi.org/10.4067/s0718-48162017000400449.

Fístulas liquid cerebrospinal (CSF) correspond to an abnormal communication between the subarachnoid space and the nasal cavity.

The origin of lateral fístulas of the sphenoid sinus is a congenital defect of the skull base, with an incomplete or premature fusion of bone components involved in the complex process of ossification of sphenoid. This originates a channel without bone coverage, only covered by connective tissue, called channel craneofaringeo or Sternberg channel. This is a weak point where may appear encephaloceles and/or fístula, the lateral location in sinus is a difficult surgical approach.

Surgical repair of fístulas of CSF has progressed dramatically with the development of endoscopic optics and the improvement in the knowledge of the anatomy of the skull base. Endoscopes enable a direct visualization, location of the defect and thus accurate reparation and less morbidity associated with transcraneales accesses made previously.

The purpose of this article is to present the case of patient with fístula of the lateral recess of the sphenoid sinus, endoscopic repair and discussion of the origin of the persistence of the channel of Sternberg as a cause of the defect.

: Cerebrospinal fluid leak; sphenoid sinus; Sternberg channel.

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