[Non-traumatic rhinorrhea from a latero-sellar fistula of the temporal fossa adjacent to an empty sella turcica. Computed tomography aspects; surgical treatment]. / Rhinorrhée non traumatique par fistule latérosellaire de la fosse temporale au voisinage d'une selle turcique vide. Aspects tomodensitométriques; guérison chirurgicale.

ABSTRACT

The authors report a case of non traumatic rhinorrhea due to an osteo-dural fistula communicating between the latero-sellar part of the left middle cranial fossa and the sphenoidal sinus. This fistula, probably congenital, was adjacent to an intrasellar arachnoidocele ("empty" sella turcica), but was not responsible for it. This lesion was demonstrated by CT scan associated with the injection of Metrizamide. The surgical treatment (trans-sphenoidal approach) allowed complete cure of the fistula and its associated symptoms.