BACKGROUND AND PURPOSE: The sphenoid sinus is rarely implicated as a site of
spontaneous CSF fistula. We undertook this study to evaluate the potential etiopathogenesis …

OBJECTIVE AND IMPORTANCE: Four cases of spontaneous cerebrospinal fluid rhinorrhea
caused by communication between the subarachnoid space of the middle cranial fossa and …

Objectives Nasal endoscopic approaches to the sphenoid sinus are challenging. Variations
in septation, shape, and dimensions have a critical impact on surgical planning of the skull …

Purpose The sphenoid sinus is a complex structure with key variations that are important for
endoscopic parasellar approaches. In this study, high-resolution computed tomography …

The aim of this study was to delineate the precise relationship between the sphenoid sinus
and internal carotid artery and the optic nerve, as well as to assess incidence of the …

Objectives: Cerebrospinal fluid (CSF) leaks and meningoencephaloceles of the lateral
recess of sphenoid sinuses are rare findings. A congenital bony defect in the lateral wall of …

Background Sternberg's (lateral craniopharyngeal) canal was originally described in
anatomic studies as a membranous space in the lateral wall of the sphenoid sinus. The …

Anatomic variations of the vital structures adjacent to the sphenoid sinus can be jeopardized
during functional endoscopic sinus surgery (FESS). The knowledge of the size and extent of …

Background The sphenoid sinus is a frequent target of paranasal sinus surgery. Because of
the high risk of injuring the surrounding structures (eg internal carotid artery, optical nerve) a …

To the accepted classification of three types of normal pressure, nontraumatic cerebrospinal
fluid (CSF) fistulas, we would add “acquired.” This type of CSF fistula tends to occur from the …