The infraorbital nerve and infraorbital artery travel through the canal.
2.
Neurological symptoms may affect the adjacent fifth cranial nerve and especially the infraorbital nerve.
3.
Frequently involved structures include the lacrimal glands, extraocular muscles, infraorbital nerve, supraorbital nerve and eyelids.
4.
IONE is defined as the infraorbital nerve diameter being greater than the optic nerve diameter in the coronal plane.
5.
The upper lip receives its sensibility from the infraorbital nerve, which is a branch of the maxillary division of the trigeminal nerve.
6.
It runs along the infraorbital groove and canal with the infraorbital nerve, and emerges on the face through the infraorbital foramen, beneath the infraorbital head of the levator labii superioris muscle.
7.
Infraorbital nerve enlargement ( IONE ) is considered to be a particularly suspicious sign of IgG4-ROD, but seems to occur only when inflammation is in direct contact with the infraorbital canal.
8.
Other orbital masses or inflammation can result in visual disturbance ( blurred vision, double vision, visual field impairment ), restricted eye movements, pain or discomfort, numbness in the distribution of the supraorbital and / or infraorbital nerves, or proptosis.
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