Presentation
Routine examination of the sinuses.
Patient Data
Age: 40 years
Gender: Female
From the case:
Ectopic infraorbital nerve canal
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CT images demonstrate bilateral protrusion of the infra-orbital nerve canal into the maxillary sinus by the means of a bony septum (or mesentery), the length of the septum on the right is 9 mm and on the left 7 mm.
Case Discussion
Abnormal protrusion of the infraorbital nerve canal into the maxillary sinus increases the risk of injury during endoscopic or open sinus surgery.
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