Protrusion of the Infraorbital Nerve into the Maxillary Sinus on CT: Prevalence, Proposed Grading Method, and Suggested Clinical Implications.

@article{Lantos2016ProtrusionOT,
  title={Protrusion of the Infraorbital Nerve into the Maxillary Sinus on CT: Prevalence, Proposed Grading Method, and Suggested Clinical Implications.},
  author={J E Lantos and Aaron N. Pearlman and Ajay Gupta and J L Chazen and R D Zimmerman and D R Shatzkes and C D Phillips},
  journal={AJNR. American journal of neuroradiology},
  year={2016},
  volume={37 2},
  pages={349-53}
}
BACKGROUND AND PURPOSE The infraorbital nerve arises from the maxillary branch of the trigeminal nerve and normally traverses the orbital floor in the infraorbital canal. Sometimes, however, the infraorbital canal protrudes into the maxillary sinus separate from the orbital floor. We systematically studied the prevalence of this variant. MATERIALS AND METHODS We performed a retrospective review of 500 consecutive sinus CTs performed at our outpatient centers. The infraorbital nerve protruded… CONTINUE READING
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