2) Our case emphasizes the significance of anatomical variations, particularly bony dehiscence over the optic canal
After the bone between the optic canal
and the anterior clinoid process has been removed, the clinoid is anchored to bone only through the optic strut.
Positioned like that, the optic strut separates optic canal
from the medial portion of superior orbital fissure.
The surgeon must always remember that the optic canal
and internal carotid artery may not be well protected in the area of sphenoid and are liable to injury.
High incidence of optic canal
involvement in tuberculum sellae meningiomas: Rationale for aggressive skull base approach.
A sign of meningioma originating in the optic canal
Subtle erosion and expansion of optic canal
is better appreciated with CT, while MRI is better in showing intracanalicular, chiasmatic or retrochiasmatic tumour extension.
A cranial computed tomography (CT) scan was performed and a mass around the left orbital apex invading the superior orbital fissure and the optic canal
with intradural growth could be seen (Fig.
This study aimed to investigate the surgical indications of exploring the optic canal
and visual prognostic factors in the neurosurgical treatment of TSMs.
Computed tomography (CT) detected soft-tissue density in the left orbital apex and a widening of the left bony optic canal
CT brain reveals intraconal mixed density lesion with solid cystic component causing proptosis and widening of optic canal
extending to middle cranial fossa possibly optic nerve glioma.
2-7) Kainz and Stammberger wrote that these cells may or may not contain tuberculum nervi optici (the bulging of the optic canal
into the wall of the Onodi cell).