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optic canal

   Also found in: Dictionary/thesaurus, Medical, Legal, Wikipedia 0.01 sec.
optic canal [′äp·tik kə′nal]
(anatomy)
The channel at the apex of the orbit, the anterior termination of the optic groove, just beneath the lesser wing of the sphenoid bone; it gives passage to the optic nerve and ophthalmic artery.
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A sign of meningioma originating in the optic canal.
Pneumosinus dilatans frontalis: a case report by Tullio, Antonio / Ear, Nose and Throat Journal
1) Prostate cancer has also been reported intracranially to involve the optic canal and orbits, resulting in amaurosis or blindness.
News potpourri (*). (SPECIAL FEATURE) by Southern Medical Journal
Computed tomography (CT) detected soft-tissue density in the left orbital apex and a widening of the left bony optic canal (figure 1).
Endoscopic resection of a venous hemangioma of the optic nerve sheath by Kennedy, David W. / Ear, Nose and Throat Journal
 
 
 
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